Question: When did the first titleholder of the title in the Peerage of Great Britain that was created in 1965 die?

<P0-S0> John Spencer, 1st Earl Spencer (19 December 1734 – 31 October 1783) was a British peer and politician. <SEP> <P1-S0> Earl Ligonier was a title that was created twice in British history, once in the Peerage of Great Britain and once in the Peerage of Ireland. <P1-S1>  The first creation came in the Peerage of Great Britain on 10 September 1766 in favour of the French-born soldier Field Marshal John Ligonier. <P1-S2>  The peerage was created with normal remainder to the heirs male of his body. <P1-S3>  He had already been created Viscount Ligonier, of Enniskillen, in the Peerage of Ireland on 31 December 1757, with normal remainder to the heirs male of his body, and Viscount Ligonier, of Clonmell, in the Peerage of Ireland on 20 May 1762, with remainder to his nephew, Edward Ligonier. <P1-S4>  In 1763 he was also created Lord Ligonier, Baron of Ripley, in the County of Surrey, in the Peerage of Great Britain, with normal remainder to the heirs male of his body. <P1-S5>  The barony, viscountcy of 1757 and earldom became extinct on his death on 28 April 1770 while he was succeeded in the viscountcy of 1762 according to the special remainder by his nephew, the second Viscount. <P1-S6>  Edward Ligonier was the illegitimate son of Colonel Francis Augustus Ligonier, brother of the first Earl. <P1-S7>  On 19 July 1776 the earldom was revived when he was made Earl Ligonier, of Clonmell in the County of Tipperary, in the Peerage of Ireland. <P1-S8>  The titles became extinct on his death on 14 June 1782. <SEP> <P2-S0> Baron Henley is a title that has been created twice: first in the Peerage of Great Britain and then in the Peerage of Ireland. <P2-S1>  The first creation came in 1760 in favour of Sir Robert Henley, Lord Chancellor of Great Britain. <P2-S2>  In 1764 he was further honoured when he was made Earl of Northington. <P2-S3>  On the death of his son, the second Earl, both titles became extinct. <P2-S4>  Lady Elizabeth Henley, youngest daughter of the first Earl and co-heiress of the second Earl, married the diplomat Morton Eden. <P2-S5>  In 1799 the Henley title was revived when Eden was created Baron Henley, of Chardstock in the County of Dorset, in the Peerage of Ireland. <P2-S6>  Their son, the second Baron, assumed the surname of Henley in lieu of Eden and notably published a biography of his maternal grandfather. <P2-S7>  His son, the third Baron, sat as Liberal Member of Parliament for Northampton. <P2-S8>  In 1885 the Northington title was also revived when he was created Baron Northington, of Watford in the County of Northampton, in the Peerage of the United Kingdom. <P2-S9>  This title gave the Barons an automatic seat in the House of Lords. <SEP> <P3-S0> Earl Spencer is a title in the Peerage of Great Britain that was created on 1 November 1765, along with the title Viscount Althorp, of Althorp in the County of Northampton, for John Spencer, 1st Viscount Spencer. <P3-S1>  He was a member of the prominent Spencer family and a great-grandson of the 1st Duke of Marlborough. <P3-S2>  Previously, he had been created Viscount Spencer, of Althorp in the County of Northampton, and Baron Spencer of Althorp, of Althorp in the County of Northampton, on 3 April 1761.