Matha Mág Tighearnán

Matha Mág Tighearnán (anglicised Matthew McKiernan) was chief of the McKiernan Clan and Baron or Lord of Tullyhunco barony, County Cavan from 1290 until 1311.

Matha was the son of Gíolla Íosa 'Leith' Mág Tighearnán, son of Sithric ‘Carrach-in-Cairn’ Mág Tighearnán (d.1290), son of Duarcán Mág Tighearnán, the Second (d.1290), son of Íomhaor Mág Tighearnán, the Second (died c.1269), son of Tighearnán, son of Duarcán the First, son of Íomhaor the First, son of Gíolla Chríost, son of Amhlaoibh, son of Tighearnán, the founder of the clan. His grandfather Sithric ‘Carrach-in-Cairn’ Mág Tighearnán had been a previous chief of the clan. Matha’s brothers were Domhnall ’An Saithnech’ Mág Tighearnán (d.1312) who succeeded him as chief of the clan, Conchobar ‘Buidhe’ Mág Tighearnán (d.1314) who was also a chief of the clan, Tomás Mág Tighearnán (d.1358) who was also a chief of the clan, Duarcán, Cú Chonnacht, Cormac, Fergal 'Cend Craiche' and Mathghamhain (d. 1314).

On the death of the previous chief, his grandfather Sithric ‘Carrach-in-Cairn’ Mág Tighearnán in 1290, Matha took the chieftaincy and resided in the castle of Croaghan of the Cups (Irish- Cruachan O'Cúbhrán), besides the modern town of Killeshandra. The McKiernans were involved in a running feud with the neighbouring O'Reilly clan.

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