Philip, Duke of Mecklenburg Doberan Minster. Philip, Duke of Mecklenburg Philip, Duke of Mecklenburg, sometimes called "Philip I" (12 September 1514 - 4 January 1557) was a Duke of Mecklenburg-Schwerin. He was the youngest son of Henry V, Duke of Mecklenburg, and Helen of the Palatinate, a daughter of Philip, Elector Palatine. As a result of an injury at a tournament he was mentally ill for many years. After Henry V's death in 1552, he lived at the court of Duke Ulrich of Mecklenburg in Güstrow, where he died. Whether he ruled actively is questionable in the light of his disability. He was buried
Prince Philip, Duke of Edinburgh Mountbatten", as Elizabeth would typically have taken Philip's last name on marriage; however, when Queen Mary, Elizabeth's grandmother, heard of this suggestion, she informed the British Prime Minister Winston Churchill, who himself later advised the Queen to issue a royal proclamation declaring that the royal house was to remain known as the House of Windsor. Churchill's strong personal antipathy to Lord Mountbatten, whom he considered a dangerous and subversive rival who had lost India, may have contributed to this. Prince Philip privately complained, "I am nothing but a bloody amoeba. I am the only man in the country not allowed