Gustavus was born in 1710,[2] probably in Ireland. He was the eldest son of Frederick Hamilton and his wife Sophia Hamilton. His grandfather was Major-General Gustavus Hamilton who would soon become Viscount Boyne. His father was the eldest son and heir apparent but would predecease his grandfather. His paternal family was a Protestant cadet branch of the Catholic Earls of Abercorns, who in turn descended from the Scottish Clan Hamilton.
On 20 October 1715 King George I ennobled his grandfather as Baron Stackallan. His father was from then on styled the Honourable Frederick Hamilton, being the son of a peer. His father enjoyed this honour for less than two months as he unexpectedly died on 10 December 1715. This made young Gustavus heir apparent at the age of five. After his father's death, his mother took him to London and sent him to Westminster School.[4] On 20 August 1717 his grandfather was advanced to Viscount Boyne and young Gustavus was styled Baron Hamilton of Stackallan as courtesy title. In 1723, aged 13, he succeeded his grandfather as 2nd Viscount Boyne.[5] In 1736, Boyne, as he now was, was sworn of the Privy Council of Ireland. In 1737, he was appointed a commissioner of the Irish Revenue, a post that he would hold until his death in 1746.[6]
In 1734, Boyne was a founder-member of the Society of Dilettanti, a group of Englishmen who had made their Grand Tour and met to discuss, and to exert their influence on, matters of taste in London. Other members of the Society included his "particular friend, the notorious rake" Francis Dashwood, 11th Baron le Despencer.[7]
Death and timeline
Boyne died unmarried on 18[8] or 20 April 1746 and was buried at Stackallen. His cousin Frederick Hamilton succeeded to the viscountcy.[9]
^Burke & Burke 1909, p. 259, left column, line 21. "Frederick, m. [married] 1 September 1707, Sophia, sister of the 1st Earl of Clanbrassil and dau. [daughter] of James Hamilton, of Tollymore."
^Lodge 1789, p. 179, line 14. "Gustavus, the second Viscount Boyne, born in 1710, was taken by his mother to London, upon his father's decease, who placed him at Westminster-school and provided fit tutors for his instruction ..."
^ abDebrett 1828, p. 765 line 35. "The viscount d. 16 Sept. 17123 and was succeeded by his grandson Gustavus, 2nd Viscount ..."
^Lodge 1789, p. 179, line 26. "In August 1736 he was sworn of the privy council; and in June 1737 appointed a commissioner of the revenue; his Lordship made his will 5 April 1746 and died unmarried 18 of that month ..."
^ abDebrett 1828, p. 765 line 37. "Gustavus, 2d viscount, b. [born] 1710, d. [died] unm. [unmarried], 20 April 1746 and was succeeded by his cousin, Frederick, 3d viscount ..."