Prince 

William Henry
Andrew Frederick

of Gloucester

18 December 1941 –
28 August 1972

Prince

Richard Alexander
Walter George,

Duke of Gloucester

born 26 August 1944

Died unmarried and without issue, killed in an airplane crash.

Paternal first
cousin to H.M. The Queen.

(21 August 1924 – 27 February 1998) was the younger son of Henry Lascelles, 6th Earl of Harewood and Mary, Princess Royal.

have issue

Children of Prince Richard, Duke of Gloucester &

Birgitte, Duchess of Gloucster:
↓

Alexander Windsor, Earl of Ulster (born 1974)
married 2002 to:
Claire, Countess of Ulster (née Booth) 
(born 1974) 

Lady Davina Lewis (born 1977)

married 2004 - 2018 to:
Gary Lewis (born 1970)

Lady Rose Gilman (born 1980

married 2008 to:
George Gilman (born ?)

↓

Children of Alexander Windsor, Earl of Ulster & Claire, Countess of Ulster (née Booth):

• Xan Windsor, Lord Culloden (born 2007)
• Lady Cosima WIndsor (born 2010)

Children of Lady Davina Lewis &

Gary Lewis:

• Senna Lewis (born 2010)
• Tane Lewis (born 2012)

Children of Lady Rose Gilman &

George Gilman

• Lyla Gilman (born 2010)
• Rufus Gilman (born 2012)