Knockgraffon

On the death of Fíngen mac Áedo Duib, his wife Mór Muman re-married and eventually the throne of Munster passed to her sons by this second marriage, including Cathal Cú-cen-máthair.

In Heerin’s topography, written in 1400, is found the verse: O’Sullivan, who delights not in violence Rules over the extensive Eoghanacht of Munster; About Knockgraffon broad lands he obtained,

Won by his victorious arms, in conflicts and battles.Following the Anglo-Norman invasion of Ireland in 1169, the O’Sullivan chiefs were recognized as princes of the Eóganachta nation who enjoyed considerable independence from the over-lord of Munster, the MacCarthy Mor.

Adding insult to injury, the Normans constructed a large earthen mound surrounded by a wooden fence right on the sacred hill of Rath Fionn.

In 1998, the Knockgraffon motte was purchased by an O'Sullivan (Gary Brian Sullivan of Statesboro, Georgia, US) from its Norman-Irish owner (Donal Keating of Cahir, Ireland).

Marian Tobin one of the women who ran a safe house in Ireland during the Irish War of Independence and was known particularly for sheltering Dan Breen and Seán Treacy after the Soloheadbeg ambush was born in Knockgraffon.