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 claimed that the Queen and the Duke were drifting apart, which enraged the Duke and dismayed the Queen, who issued a strongly worded denial. On 22 February 1957, she granted her husband the style and title of a Prince of the United Kingdom by Letters Patent, and it was gazetted that he was to be known as "His Royal Highness The Prince Philip, Duke of Edinburgh". Philip was appointed to the Queen's Privy Council for Canada on 14 October 1957, taking his Oath of Allegiance before the Queen in person at her Canadian residence, Rideau Hall. Remarks he made two