Joanna Knatchbull noblewoman; (born 1955) (b. 1955) Parents Patricia Knatchbull, 2nd Countess Mountbatten of Burma John Knatchbull, 7th Baron Brabourne Children Alexander Zuckerman Baroness Eleuthera Pernot du Breuil Siblings Amanda Ellingworth Michael-John Knatchbull Timothy Knatchbull Norton Knatchbull, 3rd Earl Mountbatten of Burma Philip Knatchbull Nicholas Knatchbull Partners Baron Hubert Pernot du Breuil Azriel Zuckerman