Prince Louis of Cambridge Prince Louis of Cambridge Prince Louis of Cambridge (Louis Arthur Charles; ; born 23 April 2018) is a member of the British royal family. He is the third and youngest child and second son of Prince William, Duke of Cambridge, and Catherine, Duchess of Cambridge. He is fifth in the line of succession to the British throne. Kensington Palace announced on 4 September 2017 that the Duke and Duchess of Cambridge were expecting their third child. A son was born at 11:01 BST (10:01 UTC) on 23 April 2018. He was first seen in public seven hours after his birth,
Duchess of Cambridge Hesse-Kassel. Under the Royal Marriages Act 1772, Prince George was required to seek the permission of the British monarch (at that time his cousin, Queen Victoria) to marry, but failed to do so as permission to marry an actress with four illegitimate children by three fathers would never have been given. Sarah could not take the style of Princess of Great Britain or of "Her Royal Highness". Duchess of Cambridge Duchess of Cambridge is the principal courtesy title held by the wife of the Duke of Cambridge. The title is legally gained upon marriage and is forfeited upon divorce. Five