Madog ap Bleddyn 11-century prince of Powys (d. 1088) Parents Bleddyn ap Cynfyn Children Siblings Iorwerth ap Bleddyn Maredudd ap Bleddyn Cadwgan ap Bleddyn Rhiryd ap Bleddyn Cadwgan ap Bleddyn ap Cynfyn, lord of Nannau Efa ap Bleddyn ap Cynfyn Gwenllian ferch Bleddyn ap Cynfyn Madog Gôch ap Bleddyn ap Cynfyn of Mawddwy Hunydd ferch Bleddyn ap Cynfyn