World of HYDE
Discovering our Ancestors and their descendants to all parts of the world. Last updated 15th March 2026.
Family: Iorwerth ab Owain / Marared Verch Madog (F6820)
m. 1163
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Male
Iorwerth ab Owain
Birth 1130 Aberffraw Castle, Aberffraw, Anglesey, Caernarvonshire, Wales 
Death 1174 Llanwnog, Powys, Wales Burial 1174 Pennant Melangell, Powys, Montgomery, Wales Marriage 1163 Aberffraw, Anglesey, Wales Father King Owain Gwynedd ap Gruffydd, of Gwynedd | F10536 Group Sheet Mother Princess of Wales Gwladys ferch Llywarch | F10536 Group Sheet
Female
Marared Verch Madog
Birth Abt 1142 Aberffraw, Anglesey, Wales Death 12 May 1189 Aberffraw, Anglesey, Wales Burial Father Mother
Female
Gwerful Llwyd Ferch Iorwerth
Birth Arwystli, Montgomeryshire, Wales Christening Aleth Death Yes, date unknown Burial Spouse Rhys Ap Gruffudd | F6836 Marriage
Male
Llewelyn Fawr
Birth Abt 1164 Aberffraw Castle, Angls Death 11 Apr 1240 Aberconway, Wales Burial Abt 1252 Wales Spouse Lady Goch Tang Wystyl | F6833 Marriage
Male
Caradog Ap Thomas Ap Rhodri Ap Owain, Of Gwynedd
Birth 1173 Dolwyddelan, Conwy, United Kingdom Death 11 Apr 1240 Aberconwy Abbey, Wales, United Kingdom Burial Spouse Eva Verch Gwyn | F6832 Marriage
Male
King of Gwynedd and Prince of Wales under King John I and King Henry III of England King Llewelyn Ap Iorwerth, Of Wales
Birth 1173 Dowyddelan, Gwynedd, Caernarvonshire, Cymru Wales Christening 11 Nov 1173 Death 11 Apr 1240 Conwy, Caernarfonshire, Wales Burial Apr 1240 Conwy, Caernarfonshire, Wales Spouse Princess Joan Lackland Plantagenet | F9666 Marriage 23 Mar 1204 Spouse Tangwystl Goch | F61236 Marriage
Female
Catherine Verch Owain
Birth 1175 Aberffraw, Isle of Anglesey, Wales, United Kingdom Death Yes, date unknown Burial Spouse Tancred Palamara | F6834 Marriage Spouse Jorworth Vaughn | F6835 Marriage
Male
Adda Ap Iorwerth Drwyndwn
Birth 1175 Gwynedd, Caernarvonshire, Wales Death 11 Apr 1240 Arllechwedd Isaf, Caernarvonshire, Wales Burial