What was Llywelyn ap Gruffudd's role in Welsh history?

Llywelyn ap Gruffudd was the Prince of Gwynedd and a key leader in the Welsh resistance against English conquest. His military campaigns and political strategies helped preserve Welsh independence during a critical period of medieval British history.

Where did Llywelyn ap Gruffudd fight?

Llywelyn ap Gruffudd led battles such as the Battle of Orewin Bridge (1277), where he defeated Edward I of England. His campaigns were central to the Welsh struggle for independence.

What was Llywelyn ap Gruffudd's legacy?

Llywelyn ap Gruffudd's legacy includes his role in maintaining Welsh resistance against English rule. His death in 1282 marked the end of the independent Principality of Gwynedd, but his leadership left a lasting impact on Welsh identity and history.

Llywelyn ap Gruffudd

Prince of Gwynedd

Person human Q369651

Llywelyn ap Gruffudd — Thomas Wriothesley · Public Domain · Wikimedia

Facts

20 properties

Instance of: human
Sex or gender: male^[16]
Date of birth: 1220, 1223, 1246, April 1228^[1]^[5]^[6]^[7]
Date of death: December 11, 1282, December 10, 1282^[3]^[8]
Place of death: Builth Wells
Country of citizenship: Wales^[14]
Occupation: monarch
Position held: King of Gwynedd^[15]
Father: Gruffudd ap Llywelyn ab Iorwerth^[9]
Mother: Senana ferch Caradog^[10]
Spouse: Eleanor de Montfort^[11]
Child: Gwenllian of Wales, Catrin ferch Llywelyn ap Gruffudd^[12]^[13]
Sibling: Dafydd ap Gruffudd, Rhodri ap Gruffudd, Owain Goch ap Gruffydd, Gwladus ferch Senana
Described by source: Dictionary of National Biography, 1885–1900, Encyclopædia Britannica 11th edition^[22]^[23]
Family: House of Aberffraw^[17]
Family name: placeholder for "novalue"^[19]
Given name: Llywelyn, Olaf^[20]^[21]
Name in native language: Llywelyn ap Gruffudd
Noble title: Prince of Wales^[18]
On focus list of Wikimedia project: TP updated between September 2019 and August 2020

🏷️ Also known as

en Llewelyn ap Gruffudd en Llewelyn Ein Llyw Olaf en Llywelyn the Last en Llywelyn II en Llywelyn Ein Llyw Olaf en Llywelyn ap Gruffydd en Llywelyn ap Gruffudd cs Llywelyn Poslední cs Llewelyn ap Grufydd de Llywelyn III. de Llywelyn II. de Llywelyn der Letzte de Llywelyn ap Gruffudd de Llewelyn II. es LLyvelyn up Gruffydd es Llywelyn Ein Llyw Olaf es Llywelyn el Ultimo Rey fi Llywelyn Viimeinen fr Llywelyn ap Gruffudd fr Llywelyn ap Gruffydd

🔖 Identifiers · 35

ISNI: 0000000078598488
VIAF cluster ID: 30337673
Library of Congress authority ID: n83329061
GND ID: 119009218
Bibliothèque nationale de France ID: 12091987x
Biblissima authority ID: Elizabeth of Bosnia
British Museum person or institution ID: 170593
CERL Thesaurus ID: cnp00544803
De Agostini ID: Llywelyn+(principe+del+Galles,+m.+1282)
Deutsche Biographie (GND) ID: 119009218
Dictionary of Welsh Biography ID: s-LLYW-APG-1200
Enciclopedia Galega Universal ID: 145013

Show all 35 identifiers +23

Encyclopædia Britannica Online ID: biography/Llywelyn-ap-Gruffudd
FAST ID: 1831181
FamilySearch person ID: LZFP-F9Q
Fandom article ID: cs.historika:Llywelyn_ap_Gruffudd
Freebase ID: /m/0ct3z
Genealogics.org person ID: I00121983
Geni.com profile ID: 6000000000424851381
Gran Enciclopèdia Catalana ID: llywelyn-ap-gruffydd
Gran Enciclopèdia Catalana ID (former scheme): 0038292, 0037741
IdRef ID: 08057825X
Lur Encyclopedic Dictionary ID: 03952/eu_l_2955/l2955, 03952/eu_l_2954/l2954
NUKAT ID: n2016165404
National Library of Israel J9U ID: 987007419586705171
National Library of Wales Authority ID: llywelyn-ap-gruffydd-d-1282-family, llywelyn-ap-gruffydd-d-1282-poetry, llywelyn-ap-gruffydd-d-1282-death-and-burial, llywelyn-ap-gruffydd-d-1282-death-and-burial-poetry, llywelyn-ap-gruffydd-d-1282-anniversaries-etc, llywelyn-ap-gruffydd-d-1282, llywelyn-ap-gruffydd-d-1282-poem-to-transcript-of-c-1849-nlw-ms-22673d-f-79r-v
National Portrait Gallery (London) person ID: mp86666
Oxford Dictionary of National Biography ID: 16875
Roglo person ID: p=llywelyn;n=of gwynedd;oc=1
SNARC ID: Jonas Kaufmann
The Peerage person ID: p10261.htm#i102603, p61055.htm#i610549
WeRelate person ID: Llywelyn_the_Last_(1)
WikiTree person ID: Ap_Gruffudd-74
WorldCat Entities ID: E39PBJmp9Hf3bvHg8WXPr7vvHC
Yale LUX ID: person/52c7f79b-2a9d-4581-a49a-8fafe5574b7f

Report an error or request removal Lineage (PROV-JSON)

🔗 Connections

Sibling 2

Dafydd ap Gruffudd, Owain Goch ap Gruffydd

Siblings 2

Dafydd ap Gruffudd, Owain Goch ap Gruffydd

Child 1

Gwenllian of Wales

Children (paternal) 1

Gwenllian of Wales

Country of citizenship 1

Wales

Described by source 1

Encyclopædia Britannica 11th edition

Family 1

House of Aberffraw

Father 1

Gruffudd ap Llywelyn ab Iorwerth

Instance of 1

human

Noble title 1

Prince of Wales

Occupation 1

monarch

Parent of 1

Gruffudd ap Llywelyn ab Iorwerth

Participated in 1

Treaty of Montgomery

Place of death 1

Builth Wells

Position held 1

Kingdom of Gwynedd

SNARC ID 1

Jonas Kaufmann

Sex or gender 1

male

Spouse 1

Eleanor de Montfort

Spouses 1

Eleanor de Montfort

← Commissioned by 1

Dolforwyn Castle

← Signatory 1

Treaty of Aberconwy

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Summary

Llywelyn ap Gruffudd was born on January 1, 1220^[1]. He died in Builth Wells^[2]. He died on December 11, 1282^[3]. He worked as a monarch^[4].

Body

Personal Life

Children include Gwenllian of Wales^[12], a nun^[24], 1282–1337^[25], of Wales^[26] and Catrin ferch he^[13].

FAQs

Where did Llywelyn ap Gruffudd die?

Llywelyn ap Gruffudd passed away in Builth Wells^[2].

Who were Llywelyn ap Gruffudd's parents?

Llywelyn ap Gruffudd's father was Gruffudd ap Llywelyn ab Iorwerth^[9]. Llywelyn ap Gruffudd's mother was Senana ferch Caradog^[10].

Who was Llywelyn ap Gruffudd married to?

Llywelyn ap Gruffudd's spouses include Eleanor de Montfort^[11].

What did Llywelyn ap Gruffudd do for work?

Llywelyn ap Gruffudd worked as monarch^[4].

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

[2] ↑ Llywelyn ap Gruffudd — place of death (P20): Builth Wells. wikidata.org.
[16] ↑ Llywelyn ap Gruffudd — sex or gender (P21): male. The Peerage. Retrieved 2024-06-20. wikidata.org.
[9] ↑ Llywelyn ap Gruffudd — father (P22): Gruffudd ap Llywelyn ab Iorwerth. wikidata.org.
[10] ↑ Llywelyn ap Gruffudd — mother (P25): Senana ferch Caradog. wikidata.org.
[11] ↑ Llywelyn ap Gruffudd — spouse (P26): Eleanor de Montfort. Retrieved 2020-08-07. wikidata.org.
[14] ↑ Llywelyn ap Gruffudd — country of citizenship (P27): Wales. wikidata.org.
[15] ↑ Llywelyn ap Gruffudd — position held (P39): King of Gwynedd. wikidata.org.
[12] ↑ Llywelyn ap Gruffudd — child (P40): Gwenllian of Wales. wikidata.org.
[13] ↑ Llywelyn ap Gruffudd — child (P40): Catrin ferch Llywelyn ap Gruffudd. Genealogics. wikidata.org.
[17] ↑ Llywelyn ap Gruffudd — family (P53): House of Aberffraw. wikidata.org.
[18] ↑ Llywelyn ap Gruffudd — noble title (P97): Prince of Wales. wikidata.org.
[4] ↑ Llywelyn ap Gruffudd — occupation (P106): monarch. Integrated Authority File. Retrieved 2015-03-30. wikidata.org.
[1] ↑ Llywelyn ap Gruffudd — date of birth (P569): January 1, 1220. wikidata.org.
[5] ↑ Llywelyn ap Gruffudd — date of birth (P569): 1223. wikidata.org.
[6] ↑ Llywelyn ap Gruffudd — date of birth (P569): January 1, 1246. Integrated Authority File. Retrieved 2026-05-04. wikidata.org.
[7] ↑ Llywelyn ap Gruffudd — date of birth (P569): April 1228. wikidata.org.
[3] ↑ Llywelyn ap Gruffudd — date of death (P570): December 11, 1282. The Peerage. Retrieved 2017-10-09. pantheon.world. Provenance: wikidata.org.
[8] ↑ Llywelyn ap Gruffudd — date of death (P570): December 10, 1282. wikidata.org.
[19] ↑ Llywelyn ap Gruffudd — family name (P734): placeholder for "novalue". wikidata.org.
[20] ↑ Llywelyn ap Gruffudd — given name (P735): Llywelyn. wikidata.org.
[21] ↑ Llywelyn ap Gruffudd — given name (P735): Olaf. wikidata.org.
[22] ↑ Llywelyn ap Gruffudd — described by source (P1343): Dictionary of National Biography, 1885–1900. wikidata.org.
[23] ↑ Llywelyn ap Gruffudd — described by source (P1343): Encyclopædia Britannica 11th edition. wikidata.org.

Inline context (facts about related entities)

[24] ↑ Gwenllian of Wales — P106: nun. Wikidata. wikidata.org. → on this site
[25] ↑ Gwenllian of Wales — P569: 1282–1337. Wikidata. wikidata.org. → on this site
[26] ↑ Gwenllian of Wales — P27: Wales. Wikidata. wikidata.org. → on this site

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA

4ort.xyz Knowledge Graph. (2026). Llywelyn ap Gruffudd. Retrieved November 8, 2026, from https://4ort.xyz/entity/llywelyn-ap-gruffudd

MLA

“Llywelyn ap Gruffudd.” 4ort.xyz Knowledge Graph, 4ort.xyz, 8 Nov. 2026, https://4ort.xyz/entity/llywelyn-ap-gruffudd.

BibTeX

@misc{4ortxyz_llywelyn-ap-gruffudd_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Llywelyn ap Gruffudd}}, year = {2026}, url = {https://4ort.xyz/entity/llywelyn-ap-gruffudd}, note = {Accessed: 2026-11-08}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Llywelyn ap Gruffudd — https://4ort.xyz/entity/llywelyn-ap-gruffudd (retrieved 2026-11-08)

Canonical URL: https://4ort.xyz/entity/llywelyn-ap-gruffudd · Last refreshed: November 8, 2026

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

4w ago · 日巫女 · 2026-10-06 view diff on Wikidata ↗

Family name → placeholder for "novalue"

Wikipedia languages → ['br', 'ca', 'commons', 'cs', 'cy', 'da', 'de', 'en', 'es', 'eu', 'fi', 'fr', 'g

Claims rich → —

"/* wbcreateclaim-create:1| */ Family name: placeholder for "novalue", #quickstatements; #temporary_batch_1791257783068"
8w ago · 日巫女 · 2026-09-11 view diff on Wikidata ↗

Given name → Llywelyn, Olaf

Date of death → +1282-12-11T00:00:00Z, +1282-12-10T00:00:00Z

Date of birth → +1220-01-01T00:00:00Z, +1223-00-00T00:00:00Z, +1246-01-01T00:00:00Z +1

"/* wbcreateclaim-create:1| */ Date of birth: April 1228, #quickstatements; #temporary_batch_1789084646151"
8w ago · 日巫女 · 2026-09-09 view diff on Wikidata ↗

Geni.com profile ID → 6000000000424851381

"/* wbcreateclaim-create:1| */ Geni.com profile ID: 6000000000424851381, #quickstatements; #temporary_batch_1788932570167"
15w ago · Pierrotrgr · 2026-07-22 view diff on Wikidata ↗

Position held → King of Gwynedd

Biblissima authority ID → Elizabeth of Bosnia

"/* wbsetclaim-create:2||1 */ Biblissima authority ID: Q231166, Import ID Biblissima V2 ([[:toollabs:editgroups/b/OR/74d891b831c|details]])"
17w ago · Estevoaei · 2026-07-06 view diff on Wikidata ↗

National Library of Wales Authority ID → llywelyn-ap-gruffydd-d-1282-family, llywelyn-ap-gruffydd-d-1282-poetry, llywelyn-ap-gruffydd-d-1282-death-and-burial +4

The Peerage person ID → p10261.htm#i102603, p61055.htm#i610549

Described by source → Dictionary of National Biography, 1885–1900, Encyclopædia Britannica 11th edition

On focus list of Wikimedia project → TP updated between September 2019 and August 2020

+ 22 other properties edited (see Wikidata diff for full list)

"/* wbsetclaim-create:1||1 */ Enciclopedia Galega Universal ID: 145013, Matched to [[:toollabs:mix-n-match/#/entry/192264633|Llewelyn II de Gales ap Gruffydd (#192264633)]] in [[:toollabs:mix-n-match/#"

Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.