I whanau a George i te 3 o Hune 1865, i Marlborough House, London. Ko ia te tama tuarua o Albert Edward, Prince of Wales, me Alexandra, Princess of Wales. Ko tona papa te tama matamua a Kuini Wikitoria me Prince Albert, a ko tona whaea te tamahine matamua a Kingi Christian IX me Kuini Louise o Denmark. I iriiria ia i Windsor Castle i te 7 o Hurae 1865 e te Pihopa o Canterbury, Charles Longley. Pātai: Ahea te iriiringa?
7 Hōngongoi 1865