"The Complete Peerage vol.VII,p.213. Fled From Ireland in 1641" "The first 15 FITZMAURICE Barons of Kerry were able to rule with little regard to what was happening in England. During the reign of Elizabeth I, however, the English effort to destroy Catholicism reached Kerry. The 16th, 17th, and 18th Baron (Thomas, Patrick, and Thomas) all fought against the English and in the defense of Ireland, the FitzMaurice family, and their freedom to remain Catholics. After becoming the 19th Baron of Kerry in 1630, Patrick apparently turned traitor and sold out to the English in order to retain title to the FitzMaurice estates (100,000 acres granted by Henry II). Patrick (19th Baron) took his seat in Parliament 14 July 1634 but fled to England upon the start of the revolt in 164179. There were several lawsuits in which Patrick's father, Thomas (18th Baron), tried unsuccessfully to disinherit his son. Patrick (19th Baron) was the first Baron of Kerry to die outside Ireland, the first Baron of Kerry to desert his country in time of war, the first Baron of Kerry to become an absentee landowner, and the first Baron of Kerry to abandon the religion of his ancestors and join the church of Henry VIII. Patrick (19th Baron) was Baron of Kerry while Oliver Cromwell was slaughtering, and selling into slavery, the Catholic people of Ireland. Since Patrick survived that period, he could not have been an active opponent of Cromwell while living in London." (Cites: Sources:- person, family: Renaud de Paysac)
SOURCES: "Ancestors/Descendants of James Butler", http://www.geneastar.org.