Lucinda Mary Blackett (born 1940) (b. 1940) Parents Sir Charles Douglas Blackett, 9th Bt. Ursula Mary Cely Trevilian Children Charles Michael Peto Hugh David Peto Iain Douglas Hilleary William James Hilleary Siblings Edward Douglas Blackett Caroline Ann Blackett Partners Ewan Iain Macleod Hilleary Sir Michael Peto, 4th Bt.