born 8 October 1946, son of Michael Darracott Millar and of his wife, Rosemary Ann Hunn.
His paternal grandmother was Rosalind Cockburn, of the Baronets, whose own mother was Lilian Manningham-Buller, of those Baronets.
His great-grandfather, Charles C H Millar, married Beatrix du Maurier, from that literary family, descended from the notorious Mary Anne Clarke, mistress of Frederick, Duke of York.
Lastly, he was cousins to the Millars, Barons Inchyra.