Prince William (born 1982) is second in line for the throne behind his father, Prince Charles, Prince of Wales. (Eamonn M. McCormack/Reuters)
Peter (born 1977) and Zara (born 1981) are the children of Princess Anne and Mark Phillips. (Jed Leicester/Reuters)
Lady Louise Windsor (born 2003) is the elder child of Prince Edward, Earl of Wessex, and Sophie, Countess of Wessex. (Andrew Winning/Reuters)
James, Viscount Severn, (born 2007) is the son of Prince Edward, Earl of Wessex and Sophie, Countess of Wessex. (Danny Martindale / WireImage)
