In the genealogies, or most of them, Tudur is said to have married Angharad, one of the daughters of Hywel Dda, in 907, and to have died in 948. The first date is wrong, one reason being that Lluddoccaf, the second son of Tudur, is said to have died in 1037.

Lluddoccaf, the second son of Tudur by Angharad, daughter of Hywel Dda, married Angharad, daughter of Iago ap Idwal Foel (or Voel) ap Anarawd. Lluddoccaf is said to have survived until 1037, which is possible but doubtful.