William Mág Tighearnán (anglicised William McKiernan) was chief of the McKiernan Clan of Tullyhunco, County Cavan from 1499 until his death in 1512.[1]

Chieftainship

On the death of the previous chief, John Mág Tighearnán in 1499, William took the chieftaincy and resided in the castle of Croaghan of the Cups (Irish- Cruachan O'Cúbhrán), now in the townland of Coolnashinny, besides the modern town of Killeshandra.

Death

William died in 1512.

The Annals of the Four Masters for 1512 state-

Mac Tiernan of Teallach-Dunchadha (William) died.

References

  1. ↑ C. Parker, "Two minor septs of late medieval Breifne", in Breifne Journal, Vol. VIII, No. 31 (1995), pp. 566–586
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