He was s of Capt Stephen Wentworth ROSKILL 1903-82 (s of John Henry ROSKILL 1860-1940 (who was also f of the LP Baron ROSKILL 1911-96) and Sybil Mary Wentworth 1879-1931 d of Ashton Wentworth DILKE 1850-1883 (s of Sir Charles Wentworth DILKE 1810-69) and Margaret Mary SMITH (5xgt gd of 1st Viscount STAIR 1619-95 who was f of 1st Earl of STAIR d 1707)) and Elizabeth Henrietta Charlotte VAN DEN BERGH 1904-83. He m 1965 reg Q2 Hants (Ann) Julia S COOKE, and had a son and a dau:
1. Edward Stephen Wentworth b Oct 1968: m 3 Oct 1998 (Times 6 Oct) Victoria Mary b 1968 d of Brig Sir Mathew John Anthony WILSON 6th Bt OBE MC 1935-2019 and Janet Mary b 1943 reg Q2 Dover d of Edward Worsfold MOWLL 1881-1964 of Walmer, Kent and Rosa Mary SPANTON 1910-73, and had issue
1.1 Alexander Charles Wentworth b 25 Nov 2001 (Times 14 Dec)
1.1 (Isa)Bella Rose Mary b 2003 reg Q3 Lambeth:
1. Sybil Margaret Julia b July 1971: m c1999 (eng Times 15 Jan) Christopher Alexander b July 1964 s of Lt Ronald Henry F FOURACRE 1932-83 of London by his c1964 m reg Q1 London to Heide-Maria C H MAURER, and had issue
1.1 Tilman Frederick Nicholas FOURACRE b 2004 reg Q4 Hammersmith
1.1 Constance (Connie) Amelia b 2006 reg Q1 Barnet