Princess Royal in the context of "Anne, Princess Royal"

Mary, Princess Royal (Mary Henrietta Stuart; 4 November 1631 – 24 December 1660), was a British princess, a member of the House of Stuart, and by marriage Princess of Orange and Countess of Nassau. She acted as regent for her minor son from 1651 to 1660. She was the first holder of the title Princess Royal.

Mary was the eldest daughter of King Charles I of England and Queen Henrietta Maria, and sister of Charles II and James II. She was married to the future stadtholder of the Netherlands, William II of Orange, in 1641 at the age of nine, while he was fourteen. Initially, she remained in England with her parents because of the heated political situation in England until early 1642, when she and her mother left for the Netherlands. Five years later in 1647, Mary's husband inherited the titles of Prince of Orange and Stadtholder of Holland, Zeeland, Utrecht, Guelders, Overijssel and Groningen in the United Provinces of the Netherlands.

Victoria, Princess Royal (Victoria Adelaide Mary Louisa; 21 November 1840 – 5 August 1901) was German Empress and Queen of Prussia as the wife of Frederick III, German Emperor. She was the eldest child of Queen Victoria of the United Kingdom and Prince Albert of Saxe-Coburg and Gotha and was created Princess Royal in 1841. As the eldest child of the British monarch, she was briefly heir presumptive until the birth of her younger brother, the future Edward VII. She was the mother of Wilhelm II, the last German Emperor.

Educated by her father in a politically liberal environment, Victoria was married at the age of 17 to Prince Frederick of Prussia, with whom she had eight children. Victoria shared with Frederick her liberal views and hopes that Prussia and the later German Empire should become a constitutional monarchy, based on the British model. Criticised for this attitude and for her English origins, Victoria suffered ostracism by the Hohenzollerns and the Berlin court. This isolation increased after the rise to power of Otto von Bismarck, one of her staunchest political opponents, in 1862.