Gradlon Mawr of Brittany

Gradlon Mawr of was born about 0330.  Gradlon Mawr of's father was Conan Meriadog and his mother was Dareca of Ireland.  His paternal grandfather was Caradawc II of Ewyas. He had a brother named UNKNOWN.  He was the younger of the two children. He had a half-brother named Cadfan ap Cynan of.  He died in 0434.

They had a son named Gwidol ap Gradlon of.