U.K. Gives Women Equality In Royal Succession For First Time In 300 Years | If Prince William and Kate Middleton’s first child is a girl, she will be queen, thanks to historic changes adopted this week by the 16 nations in the Commonwealth Realm that recognize the Queen of England as monarch. Scrapping a 300-year-old law, the nations unanimously agreed to give women equal preference to succeed the throne for the first time, and also threw out old rules that barred the monarch from marrying a Catholic. Previously, women could only take the throne if there were no male heirs. “It reminds us of the potential in our societies that is yet to be fully unlocked and it encourages us to find ways to allow all girls and women to play their full part,” Queen Elizabeth II said at the opening of a summit of Commonwealth leaders in Perth, Australia, where the reforms were adopted.