World of HYDE

Discovering our Ancestors and their descendants to all parts of the world. Last updated 5th September 2025

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King of Gwynedd and Prince of Wales under King John I and King Henry III of England King Llewelyn Ap Iorwerth, Of Wales

King of Gwynedd and Prince of Wales under King John I and King Henry III of England King Llewelyn Ap Iorwerth, Of Wales

Male 1173 - 1240  (67 years)

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  • Name Llewelyn Ap Iorwerth 
    Title King of Gwynedd and Prince of Wales under King John I and King Henry III of England 
    Prefix King 
    Suffix Of Wales 
    Nickname The Great 
    Birth 1173  Dowyddelan, Gwynedd, Caernarvonshire, Cymru Wales Find all individuals with events at this location 
    Christening 11 Nov 1173 
    Gender Male 
    _AMTID 192683704828:1030:204653251 
    _COLOR 25 
    _FSFTID 9HFS-PKH 
    _UID 57577C284C4541E8A1C79547B8531FAC26AF 
    Burial Apr 1240  Conwy, Caernarfonshire, Wales Find all individuals with events at this location 
    Address:
    Aberconwy Abbey 
    Death 11 Apr 1240  Conwy, Caernarfonshire, Wales Find all individuals with events at this location 
    Address:
    Aberconwy Abbey 
    Person ID I54165  World of Hyde
    Last Modified 5 Sep 2023 

    Father Iorwerth Ap Owain Gwynedd,   b. 1145, Aberffraw Cas, Anglesey, Wales Find all individuals with events at this locationd. 1174, Llanwnog, Powys, Wales Find all individuals with events at this location (Age 29 years) 
    Mother Marared Verch Madog,   b. Abt 1140, Overton-Madog, Montgomeryshire, Wales Find all individuals with events at this locationd. 1198, Of Caernarfon, Gwynedd, Wales Find all individuals with events at this location (Age ~ 58 years) 
    Marriage Abt 1172  Aberffraw Castle, Anglesey, Wales Find all individuals with events at this location 
    Family ID F6879  Group Sheet  |  Family Chart

    Family 1 Princess Joan Lackland Plantagenet,   b. 22 Jul 1188, Coucy, Ardennes, Champagne-Ardenne, France Find all individuals with events at this locationd. 2 Feb 1237, Aber, Caernarfonshire, Wales Find all individuals with events at this location (Age 48 years) 
    Marriage 23 Mar 1204 
    Children 
     1. Gwladus Ferch Llywellyn,   b. 1206, Gwynedd, Caernarvonshire, Wales Find all individuals with events at this locationd. 24 Oct 1251, Windsor, Berkshire, England Find all individuals with events at this location (Age 45 years)
     2. Princess of Gwynedd, Princess of Wales, Countess of Huntingdon and Chester, Elen Ferch Llywelyn,   b. 1207, Abergwyngregyn, Gwynedd, Wales Find all individuals with events at this locationd. 1253, Gwynedd, Wales Find all individuals with events at this location (Age 46 years)
     3. Margred Verch Llywelyn Of Caernarfonshire,   b. Abt 1208, Caernarfonshire, Wales Find all individuals with events at this locationd. 28 Oct 1267, Clifford Castle, Herefordshire, England, United Kingdom Find all individuals with events at this location (Age ~ 59 years)
     4. Daffyd Ap Llewelyn, Prince Of Gwynedd,   b. Mar 1212, Bagillt, Flintshire, Wales Find all individuals with events at this locationd. 25 Feb 1246, Aber Garth Celyn, Gwynedd, Wales Find all individuals with events at this location (Age ~ 33 years)
     5. Elen Ferch Llywelyn,   b. 1230, Cantref, Breconshire, Wales Find all individuals with events at this locationd. 16 Feb 1295, Shere, Surrey, England Find all individuals with events at this location (Age 65 years)
    Family ID F9786  Group Sheet  |  Family Chart
    Last Modified 5 Sep 2025 

    Family 2 Tangwystl Goch,   b. Abt 1175, Denbigh, Denbighshire, Wales Find all individuals with events at this locationd. Abt 1198, Caernarfon, Caernarfonshire, Wales Find all individuals with events at this location (Age ~ 23 years) 
    Children 
     1. Gruffydd Ap Llywelyn Fawr,   b. 1196, Denbighshire, Wales Find all individuals with events at this locationd. 1 Mar 1244, Tower of London, Middlesex, England Find all individuals with events at this location (Age 48 years)
    Family ID F62310  Group Sheet  |  Family Chart
    Last Modified 5 Sep 2025 

  • Event Map
    Link to Google MapsBurial - Address:
    Aberconwy Abbey - Apr 1240 - Conwy, Caernarfonshire, Wales    		 Link to Google Earth
    Link to Google MapsDeath - Address:
    Aberconwy Abbey - 11 Apr 1240 - Conwy, Caernarfonshire, Wales    		 Link to Google Earth
     = Link to Google Earth