O'Conor Don (No.3) family genealogy

[1] Arms: Ar. an oak tree vert surmounted by a crown.

TIRLOCH, a brother of Felim who is No. 117 on the (No. 1) "O'Connor" (Kings of Connaught) Genealogy, was the ancestor of O'Conchobhair Duinn; anglicised O'Connor Dun, and, more lately, O'Conor Don.

117. Tirloch: son of Hugh "lord of Connaught;" d. 1345.

118. Hugh: his son; lord of Connaught; had a brother named Rory; d. 1356.

119. Tirloch Dun ("dun:" Irish, here means a darkish brown colour, as distinguished from the O'Connor Ruadh [Roe]: son of Hugh; d. 1406.

120. Felim Geancach: his son; "lord O'Conor Dun;" who attended a Parliament held in his time; d. 1474.

121. Owen Caoch: his son; lord O'Conor Dun; d. 1485.

122. Cairbre: his son; lord O'Conor Dun; d. 1546.

123. Dermod: his son; lord O'Conor Dun; had a brother named Tuathal; d. 1585.

124. Sir Hugh: his son; lord O'Conor Dun; knighted by Sir John Perrott , lord deputy of Ireland; d. 1632, at a very advanced age.

125. Cathal (or Charles): his third son; d. 1634. Had a younger brother, Brian, who was the ancestor of the O'Conors of Dundermott and Milton, co. Roscommon.

126. Cathal Oge: his son; d. 1696.

127. Donogh (or Denis): his son; d. 1750.

128. Charles: his son; an eminent Antiquary; d. 1791.

129. Denis: his son; d. 1804. Had a younger brother Charles, of Mount Allen, co. Roscommon, b. 1736, d. 1808. This Charles m. a dau. of John Dillon of Dublin, and by her had three children—1. Thomas, who settled in New York; 2. Denis, and 3. Catherine—both of whom d. in America. This Thomas (d. 1855) was father of Charles O'Conor, Barrister-at-Law, (b. 1804), of New York, U.S.A., and who d. May, 1884, leaving no children.

130. Owen: son of Denis; the first Catholic Member of Parliament for the co. Roscommon, since the Reformation. This Owen became The O'Conor Don, on the death, in 1820, of Alexander O'Conor Don (See No. 128 on the "O'Conor-Eccles" pedigree), the last male representative of the elder sons of Sir Hugh (No. 124); had a brother named Mathew, who was the ancestor of O'Conor, of Mount Druid, co. Roscommon.

131. Denis: son of Owen; M.P. for Roscommon; d. 1847.

132. Charles-Owen O'Conor, known as "The O'Conor Don:" his son; was M.P. for the county Roscommon; had a younger brother named Denis (deceased), who was M.P. for the county Sligo; living in 1887. According to Burke's "Landed Gentry, 1879," this Charles-Owen m. 21st April, 1868, Georgina-Mary (who d. Aug. 1872), dau. of T. A. Perry, of Bitham House, co. Warwick, England, and by her had four children—1. Denis-Charles, b. 1869; 2. Owen-Felim, b. 1870; 3. Charles-Hugh, b. 1872; 4. Roderick, b. 1872, d. 1878. (For later particulars, see "Walford's County Families, 1879.")

133. Denis-Charles O'Conor Don: eldest son of Charles-Owen O'Conor Don, of Belanagare and Clonalis, co. Roscommon; living in 1887.


[1] O'Conor Don: The pedigree of the "O'Connor (Connaught)" family, contained in a Book by Roderick O'Conor, of Tulsk, would well repay perusal.