Bleddyn ap Cynfyn, King of Gwynedd and Powys

Bleddyn ap Cynfyn, King of Gwynedd and Powys

Male Abt 1025 - 1075  (50 years)


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  • Name Bleddyn ap Cynfyn 
    Title King of Gwynedd and Powys 
    Birth Abt 1025  Yorkshire, England Find all individuals with events at this location 
    Gender Male 
    FSID L1H5-WPB 
    Death 1075  Yorkshire, England Find all individuals with events at this location 
    Person ID I9702  footsteps | Ancestors
    Last Modified 21 Apr 2025 

    Family Haer ferch Cillin,   b. Abt 1025, Yorkshire, England Find all individuals with events at this locationd. Abt 1049, Yorkshire, England Find all individuals with events at this location (Age 24 years) 
    Marriage 1046 
    Children 
    +1. Maredudd ap Bleddyn, Ruler of Powys ,   b. Abt 1047, Yorkshire, England Find all individuals with events at this locationd. 1132, Yorkshire, England Find all individuals with events at this location (Age 85 years)  [Father: natural]  [Mother: natural]
    Family ID F5210  Group Sheet  |  Family Chart
    Last Modified 21 Apr 2025 

  • Event Map
    Link to Google MapsBirth - Abt 1025 - Yorkshire, England Link to Google Earth
    Link to Google MapsDeath - 1075 - Yorkshire, England Link to Google Earth
     = Link to Google Earth 

  • Notes 


    • Bleddyn ap Cynfyn (Old Welsh: Bledẏnt uab Kẏnỽẏn;[1] d. AD 1075), somet i m e s s p elled Blethyn, was an 11th-century Welsh king. King Harold Godwi n s o n a n d Tostig Godwinson installed him and his brother, Rhiwallon, as t h e c o - r ulers of Gwynedd on his father's death in 1063, during their des t r u c t ion of the kingdom of their half-brother, king Gruffydd ap Llywely n . B l e d dyn became king of Powys and co-ruler of the Kingdom of Gwynedd w i t h h i s b rother Rhiwallon from 1063 to 1075. His descendants continued t o r u l e P o wys as the House of Mathrafal.

      At the time of the Norman Conquest, Bleddyn was the most powerful king i n W a l e s . Closely allied with Harold, the brothers joined the Saxon resi st a n c e t o William the Conqueror following his conquest of England. In 1 0 6 7 , t h ey joined the Mercian Eadric the Wild in their struggle against W i l l i a m and attacked the Normans at Hereford, ravaging the lands as far a s t h e R i v er Lugg. In 1068, they joined earls Edwin of Mercia and Morcar o f N o r t h umbria in their attacks as well. The earls both later submitted t o W i l l i am.