Maximilian, Margrave of Baden

Maximilian, Margrave of Baden (Maximilian Andreas Friedrich Gustav Ernst August Bernhard; born 3 July 1933), is the elder son of Berthold, Margrave of Baden and Princess Theodora of Greece and Denmark. Through his mother, he is the eldest living nephew of Elizabeth II and Prince Philip, Duke of Edinburgh, and is first cousin to Charles, Prince of Wales. He is the head of the Grand-Ducal House of Baden and the representative of the descent of the Kings of Sweden of the House of Holstein-Gottorp.
Marriage and children.
After a broken engagement to Princess Beatrix of Hohenlohe-Langenburg Maximilian married Archduchess Valerie of Austria-Tuscany, daughter of Archduke Hubert Salvator of Austria and Princess Rosemary of Salm-Salm, in a civil ceremony on 23 September 1966 in Salem, Baden-Württemberg, followed by a religious ceremony on 30 September 1966 in Persenbeug Castle, Austria. They have four children: 
Because he married a Roman Catholic, the Act of Settlement of 1701 would have removed Maximilian from the line of succession to the British throne, until implementation in 2015 of the Succession to the Crown Act 2013, which restored any succession rights to British dynasties forfeited because of marriage to Roman Catholics.