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 when escorting the Queen for the annual State Opening of Parliament, where he walks and sits beside her. Contrary to rumours over the years, the Queen and Duke are said by insiders to have had a strong relationship throughout their marriage, despite the challenges of Elizabeth's reign. The Queen referred to Prince Philip in a speech on the occasion of her Diamond Jubilee in 2012 as her "constant strength and guide". As consort to the Queen, Philip supported his wife in her new duties as sovereign, accompanying her to ceremonies such as the State Opening of Parliament in various countries,