LONDON, UNITED KINGDOM - JULY 23: Miguel Head, Private Secretary to the Duke of Cambridge, pictured outside The Lindo Wing at St Mary's Hospital on July 23, in London, England. The Duchess of Cambridge yesterday gave birth to a boy at 16.24 BST and weighing 81b 6oz, with Prince William at her side. The baby, as yet unnamed, is third in line to the throne and becomes the Prince of Cambridge.  (Photo by Chris Jackson/Getty Images)