(1830–1895), biographer. Born in Dublin and educated at Clongowes Wood, he became Honorary Professor of History to the RHA, 1876. Fitzpatrick wrote about the informers in the Rebellion of 1798 [see United Irishmen] in books such as Lord Edward Fitzgerald and his Betrayers (1869). His Secret Service Under Pitt (1892) was based on government payment records. Other works include studies of Charles Lever (1879) and Lady Morgan (1860), and an edition of Daniel O'Connell's Correspondence (1888).
From The Concise Oxford Companion to Irish Literature in Oxford Reference.