Duchess of Cambridge

Britain's Catherine, Duchess of Cambridg...Britain's Catherine, Duchess of Cambridge (2-L) strokes the regimental mascot Irish Wolf Hound dog as she attends the St Patrick's Day parade with the 1st Battalion Irish Guards in Mons Barracks in Aldershot on March 17, 2014.   AFP PHOTO/ADRIAN DENNISADRIAN DENNIS/AFP/Getty

Adrian Dennis/AFP

Catherine, the Duchess of Cambridge, strokes the head of the regimental mascot, an Irish Wolfhound, at the St Patrick’s Day parade of the 1st Battalion Irish Guards in Mons Barracks in Aldershot 

Photographer's adjust remote cameras outside the Lindo Wing of St Mary's Hospital in London as the Duchess of Cambridge has been admitted to the hospital in the early stages of labour, Kensington Palace said today. PRESS ASSOCIATION Photo. Picture date: Monday July 22, 2013. See PA story ROYAL Baby. Photo credit should read: Yui Mok/PA Wire

Yui Mok/PA

Photographers adjust cameras outside the Lindo Wing of St Mary’s Hospital in London in anticipation of the arrival of the royal baby. The Duchess of Cambridge was admitted to hospital in the early stages of labour on Monday.