successor as Castellan of Windsor in 1078. Fitz-Otho is said to
have had three sons. Gerald, the eldest, under the name of Fitz-Walter,
is said to have married, in 1112, Nesta, daughter of a Prince of South
Wales, by whom he also had three sons. Fitz-Walter's eldest son, Maurice,
succeeded his father, and accompanied Richard Strongbow to Ireland
in 1170. He was afterwards created Baron of Wicklow and Naas
Offelim of the territory of the Macleans for distinguished services
rendered in the subjugation of that country, by Henry II., who on
his return to England in 1172 left Maurice in the joint Government.

Maurice married Alicia, daughter of Arnulph de Montgomery, brother
of Robert Earl of Shrewsbury, and by that lady had four sons. The
eldest was known as Gerald Fitz-Maurice, who in due course succeeded
his father, and was created Lord Offaly. Having married Catherine,
daughter of Hamo de Valois, Lord Chief Justice of Ireland, he had
a son, named Maurice after his grandfather. This Maurice died
in 1257, leaving two sons, Thomas and Gerald. Thomas, generally
called "Tomas Mor," or Great Thomas, on account of his great valour
and signal services in the battlefield, succeeded his father as
Lord Offaly. He married the only daughter of Thomas Carron. This
lady brought him the Seigniory of Desmond as a dowry. By her
Thomas Lord Offaly had an only son, John, who, according to Colin
Fitzgerald's supporters, was first Earl of Kildare and married
first, Marjory, daughter of Sir Thomas Fitz-Antony, by whom he had
issue - Maurice, progenitor of the Dukes of Leinster. John married,
secondly, Honora, daughter of Hugh O'Connor, by whom he had six
sons, the eldest of whom, according to the Irish-origin theory, was
Colin Fitz-Gerald - but who, if the Fitzgerald theory had not been
a pure invention, really ought to have been called Colin Fitz-John,
or son of John - the reputed ancestor of the Mackenzies.