Fun Fact! No descendent of George II under the age of 25 (except for princesses who marry into foreign royal families) may marry without the express consent of the reigning monarch. And that law—better known as the Royal Marriages Act of 1772, is all thanks to Anne Horton, who was born on January 24, 1743 and went on to marry Prince Henry, Duke of Cumberland and Strathearn, brother of King George III.
Anne, the daughter of the first Earl of Carhampton, was born in Marylebone, London and married a commoner, Christopher Horton, in 1765. Later, after Horton’s death, she drew the eye of Prince Henry (who had allegedly married another commoner, Olive Wilmot, in 1767, and had a reputation as a rake.) They married on October 2, 1771. Henry’s brother, King George, was enraged and retaliated with the Royal Marriages Act, which would eventually be put into effect for George’s own son, the profligate Prince of Wales.
There was nothing George could do about Henry’s and Anne’s marriage, however, and although Anne was rumored to be, well, a bit easy, she and Henry stayed together until his death in Brighton in 1790. They had no children, and Anne died in 1808