Thomas FitzMaurice married Ellinor, daughter of Jordan de Marisco, and sister of Geoffrey de Marisco, who was appointed justiciar of Ireland in 1215.,[6][4] and had issue:
^Otway-Ruthven, A.P. (1993). A History of Medieval Ireland. New York: Barnes & Noble Books. p. 87. ISBN 1-56619-216-1.
^Webb, Alfred.A Compendium of Irish Biography. Dublin: 1878.
^Weis, Frederick Lewis. Ancestral Roots of Certain American Colonists Who Came to America before 1700. Eighth ed. (2008), p. 169.
^ a b cBurke, Bernard, A Genealogical History of the Dormant, Abeyant, Forfeited, and Extinct Peerages of the British Empire. London: Harrison. 1866. p. 204
^Otway-Ruthven, A. J. (1993). History of Medieval Ireland. New York: Barnes & Noble. p. 82. ISBN 1-56619-216-1.
^ a bCokayne, George Edward, Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct, or Dormant. Volume III. London: George Bell & Sons. 1890. p. 83