Madoc ap Bleddyn/Blethyn(b.c. 1060, d. 1088)B1 in "Welsh Madoc Dynasties"
B1 in "The Prince Madocs of Acton, Lancashire"
B1 in "The Prince Madocs of Sutton-Madoc, Shropshire"
This Prince Madoc was the earliest of all known Prince Madocs, born about 1060 in Wales. He was a son of Bleddyn/Blethyn who ruled the kingdom of Gwynedd in northwest Wales, and upon his brother's death in 1070, also Powys in northeast Wales.
Two historians said of Bleddyn, that he was
...the most lovable and the most merciful of all kings...he was civil to his relatives, generous to the poor,merciful to pilgrims and orphans and widows and a defender of the weak.
...the mildest and most clement of kings...did injury to none, save when insulted:.openhanded to all, terrible in war, but in peace beloved.
Madoc's brother, Iorwerth, became prince of one-third of Powys in Northeast Wales. Another brother, Maredudd, became Prince of one third and eventually all of the kingdom of Powys. Many descendants ended up in northwest England along the Welsh border.
Norman William the Conqueror's Domesday Book of 1086 lists "the tenant of nearby Brogynton" as Madoc, possibly the son of Bleyddn ap Cynfyn, usually called the Prince of Powys. Today there is a Broughton in Lancashire County and another Broughton in Cheshire County.
In the papers of the Hulton family baronets of Hulton Park, at the Lancashire record office, is stated that they were faithful vassals of Robert Banastre expelled from Wales in 1167. "Certainly Iorwerth and Madoc, sons of Bleiddyn, held lands in Hulton before 1200.
Prince Madoc was killed in battle at an early age, along with his brother Rhiryd in 1088, thirteen years after his father's death.
Housed in the Lovell Family papers, Cole Park, Wiltshire Record Office, is a parchment 12' 5" long of Thomas Vaughan in 1653 that goes back to Blethin ap Kynvin, prince of Powis.