Tierney family genealogy
Of Ulster
Arms: Ar. a chev. sa. a chief gu. Crest: An oak tree ppr.
TIGHEARNACH, a son of Muireadach who is No. 89 on the (No. 1) "O'Neill" (of Tyrone) pedigree, was the ancestor of Cineal Tighearnaigh; anglicised Tierney.
90. Tighearnach ("tighearna:" Irish, a lord): son of Muireadhach; a quo Cineal Tighearnaigh.
91. Dathgil: his son.
92. Ruadan (or Ruarcan): his son.
93. Feardalach (or Columan): his son.
95. Cirdeag (or Firdheodh): his son.
96. Cronghiolla: his son.
97. Aodh: his son.
98. Cel: his son.
99. Rath: his son.
100. Tighearna: his son.