Dyddgu was the daughter of unknown parents. The date and place of her birth have not been found.
Her husband was Madog Llwyd ap Iowerth. They were married, but the date and place have not been found. They had no known children.
Note 1
dau. of Llewelyn ap GRONWY FYCHAN (? - 1352+) & Gwerful verch ROTPERT