*Iowerth "Hirvlawd" ap Tegonwy
born about 0767?

father:
*Tegonwy ap Teon
born about 0768?

mother:
unknown

siblings:
*Caenog ap Tegonwy born about 0740?

spouse:
*Arianwen verch Brychan
born about 0767

children:
*Idnerth ap Iowerth born about 0797
Cynon "Mawr" ap Iowerth

biographical and/or anecdotal:

notes or source:
ancestry.com
actually they list the spouse as