In 1631 [his grandfather] Nicholas Saundeson 1st Viscount Castleton (age 69) died. His son [his father] Nicholas Saundeson 2nd Viscount Castleton succeeded 2nd Viscount Castleton.

On 13 Nov 1640 [his father] Nicholas Saundeson 2nd Viscount Castleton died. His son [his brother] Nicholas Saundeson 3rd Viscount Castleton (age 14) succeeded 3rd Viscount Castleton.

In 1650 [his brother] Peregrine Saundeson 4th Viscount Castleton (age 22) died. His brother George Saunderson 5th Viscount Castleton (age 18) succeeded 5th Viscount Castleton.

In 1652 [his mother] Frances Manners (age 52) died.

In 1667 [his wife] Grace Belasyse died.

On 26 Jun 1685 [his father-in-law] John Evelyn of Wiltshire (age 83) died. He left his daughter [his wife] Sarah Evelyn Viscountess Fanshawe and Castleton (age 43) only five shillings in his will since he disapproved of her marriage with George Saunderson 5th Viscount Castleton (age 53).

On 26 Feb 1687 [his former sister-in-law] Arabella Belasyse Lady Thirkleby (age 50) died.

On 18 Oct 1687 [his step-son] Evelyn Fanshawe 3rd Viscount Fanshawe (age 18) died in Aleppo, Syria. He was buried at Ware, Hertfordshire [Map]. His uncle Charles Fanshawe 4th Viscount Fanshawe (age 44) succeeded 4th Viscount Fanshawe.

Around Jan 1699 [his sister-in-law] Elizabeth Evelyn died at Stanton Harcourt, Oxfordshire [Map].

On 16 Aug 1699 [his former brother-in-law] Rowland Belasyse (age 67) died.

Before 31 Dec 1700 [his former brother-in-law] Henry Belasyse died.

On 12 Sep 1708 [his former sister-in-law] Barbara Belasyse died.

On 07 Apr 1714 [his step-daughter] Elizabeth Wray (age 51) died. She was buried at St Michael's Church, Glentworth [Map].

On 27 May 1714 George Saunderson 5th Viscount Castleton (age 82) died at Sandbeck Park Maltby. His son [his son] James Saunderson 1st Earl Castleton (age 47) succeeded 6th Viscount Castleton.

In 1717 [his former wife] Sarah Evelyn Viscountess Fanshawe and Castleton (age 75) died.