He was High Sheriff of Co.Kerry
In Nov 1641, during the 1641 Rebellion, during the Siege of Tralee, he and his aged father surrendered "Ballycarty Castle" to the rebels.
He escaped to Cork and became a Captain of Foot 1643.
Ballyseedy Castle became the main family seat.
Though for some time Blennerhassetts lived at both
Ballycarty and Ballyseedy.
In 1654 he was granted Littur (or Littor or Letter), Aghavallen par, near Ballylongford, Co.Kerry.
Littur was granted to him by Sir Arthur Denny, Knt by deeds dated 30 Sept 1654 [Manuscript of 1654]. Think he is living Ballyseedy at this time.
MP for Co.Kerry 1661-66. (NOT for Tralee, that is his son John.)
He acquired in 1661 the forfeited McElligott lands of E and W Ballymacelligott (E of Tralee, Ballymacelligott par, Co.Kerry), Ballygrelah, and E and W "Gortanleas" (wonder if this is Gortatlea, Ballymacelligott par).
His will dated 18th Oct 1673.
He died 1676. Will proved 14th Sept 1676.
See abstract of will in [MGH, 1883].
John and Martha had issue:
Extract from elegy to this John's grandson John Blennerhassett (died 1709) by the Gaelic poet Aodhagán Ó Rathaille.
Ó Rathaille refers to him as "John, son of John, son of John of Ballyseedy".
From page 207 of [Dineen and O'Donoghue, 1911].
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