Jacquetta Jean Frederica Eliot, Countess of St Germans is the third daughter of Miles Wedderburn Lampson, 1st Baron Killearn, his first daughter by his second marriage, to Jacqueline Aldine Leslie née Castellani, daughter of Marchese Senator Aldo Castellani.
Jacquetta Jean Frederica Eliot, Countess of St Germans (born 29 June 1943) is the third daughter of Miles Wedderburn Lampson, 1st Baron Killearn. She is his first daughter by his second marriage, to Jacqueline Aldine Leslie née Castellani, daughter of Marchese Senator Aldo Castellani.