From the Telegraph of 5 Aug 2023: DERWENT Lady Sybille Marie
Louise Marcelle (née de Simard de Pitray), died peacefully at home on Tuesday
1st August, much loved wife of Robin and mother of Emmeline, Joanna, Francis
and Isabelle. Memorial Service to be held at St Peter's Church, Hackness, North
Yorkshire on Sunday 20th August at 4 p.m.
She was d of the Vicomte
DE SIMAND DE PITRAY and Jeanine HENNESSY. She m the 5th Baron DERWENT b 1930, and had a son (ha to his
father) and three daus as above.