Biography of William Fitzwilliam 1st and 3rd Earl Fitzwilliam 1720-1756

On 17th September 1718 [his father] John Fitzwilliam 2nd Earl Fitzwilliam (age 33) and [his mother] Anne Stringer were married. He the son of [his grandfather] William Fitzwilliam 1st Earl Fitzwilliam (age 75) and [his grandmother] Anne Cremor.

On 15th January 1720 William Fitzwilliam 1st and 3rd Earl Fitzwilliam was born to John Fitzwilliam 2nd Earl Fitzwilliam (age 35) and Anne Stringer.

On 28th August 1728 [his father] John Fitzwilliam 2nd Earl Fitzwilliam (age 43) died. His son William (age 8) succeeded 3rd Earl Fitzwilliam5th Baron Fitzwilliam of Liffer in Donegal.

On 4th May 1741 William Fitzwilliam 1st and 3rd Earl Fitzwilliam (age 21) was elected MP Peterborough.

On 22nd June 1744 William Fitzwilliam 1st and 3rd Earl Fitzwilliam (age 24) and Anne Watson Wentworth Countess Fitzwilliam were married at St George's Church, Hanover Square. She by marriage Countess Fitzwilliam, Baroness Fitzwilliam of Liffer in Donegal. She the daughter of Thomas Watson 1st Marquess Rockingham (age 50). He the son of John Fitzwilliam 2nd Earl Fitzwilliam and Anne Stringer.

On 24th March 1745 Anne Fitzwilliam was born to William Fitzwilliam 1st and 3rd Earl Fitzwilliam (age 25) and Anne Watson Wentworth Countess Fitzwilliam.

On 6th June 1746 William Fitzwilliam 1st and 3rd Earl Fitzwilliam (age 26) was appointed Privy Council.

On 14th July 1746 Charlotte Fitzwilliam Baroness Dundas was born to William Fitzwilliam 1st and 3rd Earl Fitzwilliam (age 26) and Anne Watson Wentworth Countess Fitzwilliam. She married 24th May 1764 Thomas Dundas 1st Baron Dundas, son of Thomas Laurence Dundas 1st Baronet, and had issue.

On 6th September 1746 William Fitzwilliam 1st and 3rd Earl Fitzwilliam (age 26) was created 1st Earl Fitzwilliam. [his wife] Anne Watson Wentworth Countess Fitzwilliam by marriage Countess Fitzwilliam.

On 30th May 1748 William Fitzwilliam 4th and 2nd Earl Fitzwilliam was born to William Fitzwilliam 1st and 3rd Earl Fitzwilliam (age 28) and Anne Watson Wentworth Countess Fitzwilliam. He married (1) 1770 Charlotte Ponsonby Countess Fitzwilliam, daughter of William Ponsonby 2nd Earl Bessborough and Caroline Cavendish Countess Bessborough, and had issue (2) 1822 Louisa Molesworth Countess Fitzwilliam, daughter of Richard Molesworth 3rd Viscount Molesworth.

On 14th December 1750 [his father-in-law] Thomas Watson 1st Marquess Rockingham (age 57) died. His son [his brother-in-law] Charles (age 20) succeeded 2nd Marquess Rockingham, 7th Baron Rockingham of Northampton, 7th Baronet Watson of Rockingham Castle in Northamptonshire.

In 1752 [his brother-in-law] Charles Watson-Wentworth 2nd Marquess Rockingham (age 22) and Mary Bright were married. He the son of [his father-in-law] Thomas Watson 1st Marquess Rockingham.

On 10th August 1756 William Fitzwilliam 1st and 3rd Earl Fitzwilliam (age 36) died. His sonWilliam (age 8) succeeded 4th Earl Fitzwilliam, 2nd Earl Fitzwilliam, 6th Baron Fitzwilliam of Liffer in Donegal. [his future daughter-in-law] Charlotte Ponsonby Countess Fitzwilliam by marriage Countess Fitzwilliam.

In 1769 [his former wife] Anne Watson Wentworth Countess Fitzwilliam died.