_. At a meeting of the Privy Council, 12 February, 2008, HM The Queen
gave Royal Consent under the terms of the Royal Marriages Act 1772, to
the forthcoming marriage between Matthew Shard and the Hon Emily
Tsering Lascelles (b 23 Nov, 1975), eldest child & only dau of David
Henry George Lascelles, styled Viscount Lascelles (b Oct 1950), by his
first wife the former Margaret Rosalind Messenger (b 1948), and
granddaughter of the 7th Earl of Harewood, KBE (b 1923), a first
cousin of HM The Queen.
Emily Lascelles, born before the marriage of her parents, and
legitimated upon their marriage, is, however, not in the line of
succession to the Throne.
I have always assumed that illegitimate children fell outside the
catchment of the Royal Marriages Act. The scores of FitzClarence
descendants, as far as I am aware, do not require HM's consent to
marry. Perhaps the fact that Miss Lascelles was legitimated upon her
parents' marriage has something to do with her inclusion.