[3] In about 1587 he left Scotland by ship and due to storms unexpectedly arrived in Dublin, Ireland.
[2] Hamilton was accredited by James VI to reside in London, by his letters to Elizabeth and Robert Cecil on 4 August 1600.
[3] In 1601, Gaelic chieftain Conn O'Neill of Ulster sent his men to attack English soldiers after a quarrel and was consequently imprisoned.
[8] Hamilton's main grant, made formally in November 1605, was the lordship of Upper (South) Clandeboye and the Great Ardes in County Down.
[2] The Nine Years' War in Ireland had ended in 1603, and Hamilton and Montgomery both recruited tenants from the Scottish Lowlands to migrate to Ulster to farm their newly acquired lands for low rents.
[2] His brother John acquired lands in County Armagh and founded Markethill, Hamiltonsbawn and Newtownhamilton.
[10] In 1641, when in his eighties, he returned to his Scottish home town of Dunlop and built a mausoleum for his parents in the churchyard where his father had been minister.
[12] The king gave colonels' commissions to Hamilton and other Scots in November to raise troops in Ulster to combat the rising.
[2] Hamilton's first wife was Alice Penicook (sometimes referred to, apparently incorrectly, as Penelope Cooke), and she was with him until at least 1602.
His grandson, Henry Hamilton, 3rd Viscount Claneboye, died in 1675 with no sons and the title became extinct.