Long before any dragon banner, Iron Age Celtic tribes — the Ordovices, Silures, Demetae, and Deceangli — held these hills, and Rome spent decades subduing them before garrisoning the land for over three centuries. Y Ddraig Goch, the Red Dragon, is one of the oldest national symbols in Europe — claimed in legend for the Arthurian era and attested in writing by the 9th century — yet it took until 1959 for Wales to receive an official national flag of its own. In between lie four centuries of independent native princedoms, Edward I's conquest, and four hundred years in which Wales, legally absorbed into England, had no separate flag status at all.
This page tracks both threads: the dragon's long informal and heraldic life, and the hard constitutional facts of conquest, incorporation, and eventual recognition that determined which flag actually had legal standing at any given point.
Scope of this page: the lands of present-day Wales, c. 800 BCE–present, six political entities. Medieval Wales was never a single unified kingdom in the way Scotland was — Gwynedd, Powys, Deheubarth, and others ruled separately and often rivaled one another; the banner shown for the independent era is Gwynedd's own device under Llywelyn ap Gruffudd, the strongest and last independent Welsh polity, labeled here as an informed reconstruction representing that whole fractious era rather than a single pan-Welsh flag that never existed. No internal governing split exists within Wales's own borders at any point covered here — and, as a sub-national entity within England/the UK for most of its history rather than a fully independent state, Wales doesn't call for the same kind of internal-partition map as a country like Vietnam or Yemen. The map below is a simple real-outline trace instead. Part of a larger atlas — see the linked pages at the bottom.
One outline, five flags
Wales's own real traced outline (mainland plus Anglesey), built from UK local-authority boundary data rather than a schematic shape. Press play, or drag the slider, to watch which flag actually had legal or de facto standing over it.
Wales doesn't get an internal split map. It's a single, geographically coherent piece of land that has never itself been partitioned into rival internal jurisdictions the way Hungary or Vietnam were — only ever fully independent (native princedoms), or fully annexed into a larger neighbor (England, then Great Britain, then the UK). What changes here is only whose flag counted.
c. 800 BCE
Iron Age Britons & Roman Wales
Real traced outline (mainland + Anglesey), simplified from UK local-authority boundary data — no internal partition, per the rule box above.
How we know this. 6 of 6 eras on this page carry an evidence panel (1 attested, 2 placeholder image, 3 not yet checked). Only the ones marked attested are confirmed by the sources named under them; where sources disagree or a claim could not be confirmed, the panel says so.
Y Ddraig Goch — red dragon on green-and-white
1959 – present
Wales (national flag officially recognized)
Part of the United KingdomElizabeth IINo established church (disestablished 1920)
Who & why: Wales remains constitutionally part of the United Kingdom throughout this era, but on 23 February 1959 a royal warrant formally recognizes Y Ddraig Goch on a green-and-white field as the official national flag of Wales — the first time Wales has had a legally recognized flag of its own since incorporation into England over four centuries earlier. The Government of Wales Acts (1998, 2006) later establish the Welsh Assembly, renamed the Senedd (Welsh Parliament) in 2020, giving Wales its own devolved legislature for the first time in its history.
What it represents: the red dragon, drawn from centuries of Welsh tradition (Historia Brittonum c. 828; Henry VII's standard of 1485; the 1807 Royal Badge), set on the green-and-white field of the Tudor livery, which Wikipedia says was added to the flag later; a 1953 badge-on-white flag was used by government until the red dragon on green and white was granted official status in 1959 (Flags of the World; Wikipedia, citing a 1959 Hansard answer).
Attestedhow we know this
Flags of the World: 'The Welsh flag was granted official status in 1959'; in February 1959 the Queen directed that only the red dragon on a green and white field be flown on government buildings in Wales and London; the white-and-green field is 'in the livery colours of the Tudors'. Wikipedia: officially recognised as the national flag in 1959 (cited to a 1959 Hansard written answer by Henry Brooke), government use of the earlier badge-based flag dropped that year at the Gorsedd of Bards' urging; the Tudor livery was added to the flag later.
Not established: The page's 'in informal use for generations' is not stated by either source for this exact green-and-white design: Wikipedia says the Tudor colours came after Henry VII's standard and a badge-based white flag (1953) was used until 1959. Flags of the World's 1 January 1801 date for this row's earlier reading was the Union Flag, not the Welsh flag.
Paint guide
Proportions3:5, per Welsh Government guidance.
LayoutHorizontal bicolor, white over green, with a passant red dragon centered across both halves.
White#F4EFE1
Green#0B7A3D
Dragon red#9C3B28
England's, then Great Britain's, then the UK's flag; Flags of the World says Wales never had its own part of the Union Flag
1536 – 1959
Wales (fully incorporated into England / Great Britain / the UK)
Part of the Kingdom of England / UKHenry VIIIChurch of England (until 1920 disestablishment)
Migration & conquest:Immigration: Irish, Italian & Spanish workers (1840s–)Emigration: Patagonia (Y Wladfa, 1865) & the United States
Who & why: Henry VIII's Laws in Wales Acts of 1535 and 1542 go further than Edward I's conquest ever did: Wales is fully incorporated into the Kingdom of England, given English common law, English-style counties and sheriffs, and its own seats in the Westminster Parliament for the first time — a permanent administrative and legal merger, not a personal union. Wales has no separate legal or flag status for the whole of this span: it simply flies whatever flag England, then Great Britain (from 1707), then the United Kingdom (from 1801) flies. The dragon survives only informally — in heraldry, regimental badges, and popular symbolism — with no official civic standing.
What it represents: the flag of the union Wales was part of. Flags of the World says Wales, treated as a principality within England, never had its own portion of the Union Flag, and that no dragon flag was recorded between Henry VII's standard and 1840; Wikipedia adds that a red dragon on a green mount became the Royal Badge of Wales in 1807 and that a badge flag followed in 1953. The sources read do not mention the 1801 Union Flag, so its use here is an assumption.
Not yet checked against sourceshow we know this
Flags of the World: Wales was united with England under the Statute of 1284 and entrenched by Acts of 1535 and 1543; after Henry VII's dragon standard no other such flag was recorded until 1840; the history page records Henry VII's red dragon standard blessed at St Paul's on 27 August 1485 and a 1807 declaration that a red dragon on a mound should be the King's badge for Wales; in 1953 the augmented badge was set on a white flag. Wikipedia: red dragon on a green mount became the Royal Badge of Wales in 1807 and a badge flag followed in 1953.
Not established: Nothing read describes the 1801 Union Flag or its use in Wales; the claim that Wales used England's, then Great Britain's, then the UK's flag is an assumption, supported only by FOTW's statement that Wales had no portion of the Union Flag. Not read: a source on English flags used in Wales.
Paint guide
ProportionsUnion Flag proportions vary by era; 1801 form shown, no separate Welsh proportions exist.
LayoutEngland's St George's cross (1536–1606), then the Union Flag of 1606 (1606–1801), then the Union Flag of 1801 (1801 onward), shown here.
Blue#00247D
White#F4EFE1
Red#CF142B
England's St George's Cross, the crown Wales is annexed to from 1283
1283 – 1536
Wales (English-controlled principality, no separate flag)
Part of the Kingdom of England / UKEdward IRoman Catholic
Migration & conquest:Conquered by: Kingdom of England (1282–83)
Who & why: Llywelyn ap Gruffudd, Prince of Wales, is killed near Builth in December 1282, and by 1283 Edward I has completed his conquest, formalized the following year with the 1284 Statute of Rhuddlan, which annexes the remaining independent Welsh territories to the English crown and ringed them with a chain of great castles (Caernarfon, Conwy, Harlech, Beaumaris). In 1301 Edward's own son, the future Edward II, is created the first English Prince of Wales, a title every heir to the throne has carried since. Wales is administered directly under England's crown, with no separate flag of its own during this span, though the dragon persists as a potent symbol — Henry Tudor, himself of Welsh descent, marches under a red dragon standard at the Battle of Bosworth in 1485, when he takes the English throne.
What it represents: Flags of the World says the Statute of Wales was passed on 19 February 1284 and Wales was treated as a principality within England, and that the dragon appeared in the royal arms in the 15th century. The sources read do not say St George's cross was flown over Wales, or whether the red dragon was in informal use before 1485 other than as Henry Tudor's standard.
Not yet checked against sourceshow we know this
Flags of the World: the Statute of Wales was passed on 19 February 1284 and Wales treated as a principality within England; the dragon appeared in the royal arms in the 15th century; the history page records that Llywelyn the Last (proclaimed Prince of Wales 1258) likely fought under the Lions of Gwynedd and that Glyndwr displayed a golden dragon on white at Caernarfon on 2 November 1401. The history page and the main page do not mention St George's cross over Wales.
Migration & conquest:Conquered by: Norman Marcher lords (parts of Wales, from 1070s)
Ruling house:House of Aberffraw (Gwynedd)House of Dinefwr (Deheubarth)House of Mathrafal (Powys)
Who & why: medieval Wales is never a single unified kingdom but a shifting patchwork of native princedoms, chiefly Gwynedd in the north, Powys in mid-Wales, and Deheubarth in the south, each ruling in its own right and often at war with one another as much as with England. Gwynedd becomes the dominant power by the 13th century: Llywelyn ap Gruffudd is recognized by England as Prince of Wales under the 1267 Treaty of Montgomery, ruling most of native Wales until Edward I's conquest ends it in 1282–83.
What it represents: Wikipedia says the Historia Brittonum (c. 828) first gives the dragon as red, linked to the Britons against the white dragon of the Anglo-Saxons, and that Owain Glyndwr raised a dragon standard in 1400 and a golden dragon on white at Caernarfon in 1401. Flags of the World says there is no clear evidence of a Welsh dragon banner before 1401 and that Llywelyn the Last probably fought under the Lions of Gwynedd (Wikipedia shows the arms of the three 13th-century Gwynedd rulers as the kingdom's flag); a four-lions banner attributed to Glyndwr is a contributor's claim. The lions-and-dragon banner for c. 850-1283 drawn here is a reconstruction that none of the sources describes.
Not yet checked against sourceshow we know this
Flags of the World's history page: the Historia Brittonum (c. 800, attributed to Nennius) gives the red dragon as the British symbol, 'there is no clear evidence of a Welsh dragon banner before 1401', Matthew Paris's sketch of Gruffudd ap Llywelyn's arms shows lions, and Llywelyn probably fought under the Lions of Gwynedd; its Glyndwr page has contributors attributing a four-lions banner (Powys and Deheubarth arms) to him. Wikipedia (Kingdom of Gwynedd): c. 500-1283, infobox flag is the arms of Gruffudd, Dafydd and Llywelyn ap Gruffudd, and no dragon is Gwynedd's emblem; Wikipedia (Flag of Wales): Historia Brittonum c. 828, Glyndwr's dragon 1400-1401.
Not established: The two publishers support a lions banner for 13th-century Gwynedd, not a lions-and-dragon combination, and give no banner at all for c. 850-1200; the card's four lions are not what the Gwynedd arms show (the Glyndwr four-lions arms are a contributor's claim for a later date).
Paint guide
ProportionsN/A — no fixed national flag; shown as an informed reconstruction of Gwynedd's princely arms.
LayoutWhite/silver field, four gold lions (simplified as red squares here), dragon motif overlaid for legend continuity.
White#F4EFE1
Red#9C3B28
Green (dragon)#0B7A3D
placeholder maroon field — pre-unification era, no flag survives
c. 400 – 850
Sub-Roman and early medieval Welsh kingdoms
Fragmented kingdomsCunedda ap EdernCeltic Christianity
Migration & conquest:Immigration: Brittonic refugees from the east
Who & why: after Roman withdrawal from Britain in the early 5th century, the Brittonic peoples of what becomes Wales organize into a number of small, competing kingdoms — Gwynedd, Powys, Dyfed, and others — defending against Anglo-Saxon expansion to the east (Offa's Dyke, built by the Mercian king Offa in the later 8th century, marks the rough frontier that emerges). This is also the era the later Arthurian and dragon legends claim as their setting, including the Historia Brittonum's own account, though that text itself dates only from around 830.
What it represents: no securely documented flag survives from this pre-heraldic era; the dragon symbolism later attached to this period (Arthur, Cadwaladr) is retrospective legend recorded centuries after the fact, not a contemporary attested banner. Shown here honestly blank rather than invented.
Placeholder imagehow we know this
This page's own caption calls the image a placeholder: «placeholder maroon field — pre-unification era, no flag survives».
Not established: Whether a flag, banner or standard existed in this period was not checked. The colour shown is not evidence of one.
Paint guide
ProportionsN/A — no attested flag.
placeholder — no unified banner; Iron Age tribes and Roman garrisons left forts, not flags
c. 800 BCE – c. 400 CE
Iron Age Britons & Roman Wales
Fragmented / tribal, then Roman provinceGnaeus Julius AgricolaCeltic polytheism, then Roman religion & early Christianity
Migration & conquest:Conquered by: Rome (completed c. 77–78 CE)
Who & why: centuries before any Welsh kingdom existed, Iron Age Celtic Britons organized into distinct tribes — the Ordovices in the north-center, the Silures in the south-east, the Demetae in the south-west, and the Deceangli in the north-east — each defending its own hillforts. Rome's conquest of these tribes took decades of hard fighting, including the destruction of the druids' sanctuary on Anglesey in 60/61 CE, and was only completed under the governor Agricola around 77–78 CE. Roman Wales that followed was garrisoned rather than urbanized in most of the interior, anchored by the legionary fortress at Caerleon (Isca) and the fort at Segontium near modern Caernarfon, with a rare documented Roman gold mine worked at Dolaucothi. Roman withdrawal from Britain in the early 5th century ends this era and opens the sub-Roman kingdoms that follow.
What it represents: no securely documented flag survives from this era — Celtic tribes carried their own war standards, mostly unrecorded, and Rome's own military standards represented the legions and the emperor, not a Welsh polity. Shown here honestly blank rather than invented.
World context: this span runs from roughly the founding of Rome itself (traditionally 753 BCE) through the Roman Republic's rise and fall, Julius Caesar's first landings in Britain (55–54 BCE), and the construction of the Colosseum (70–80 CE) and Hadrian's Wall (begun 122 CE) far to the north — the same imperial system whose legions built the forts still visible at Caerleon and Segontium.
Placeholder imagehow we know this
This page's own caption calls the image a placeholder: «placeholder — no unified banner; Iron Age tribes and Roman garrisons left forts, not flags».
Not established: Whether a flag, banner or standard existed in this period was not checked. The colour shown is not evidence of one.
Paint guide
ProportionsN/A — no attested tribal or Roman-provincial flag.
Reading the tags
Fragmented kingdoms — no single crown yet
Independent native kingdoms — ruled by native Welsh princes
Part of the Kingdom of England / UK — annexed, no separate flag status
Leader — the named ruler most associated with the era's start
State religion — the official/established faith, not the population's
Find the records
Family history research for wales lives in a different project, Record Atlas, which maps which archive actually holds the paper for a given place and era.