His older brother is George Mountbatten, 4th Marquess of Milford Haven. Ivar is also the godfather of Lady Louise Windsor (born 2003), the daughter of Prince Edward and his wife Sophie.

Charles Philip Arthur George Mountbatten-Windsor was born in Buckingham Palace on November 14, 1948 as the first child of Princess Elizabeth and Philip, Duke of Edinburgh TASS, May 6. The ...

Time for a deep dive! ’Kay, so Lord Ivar’s dad was Marquess David Mountbatten, and his grandfather was Marquess George Mountbatten. Turns out, George was the oldest son of Marquess Louis Mountbatten, ...