The Monarchs of the House of Hanover
When George I arrived in Britain in 1714, he brought no queen consort with him. He had divorced his wife in 1694, for alleged adultery.
In 1820 George IV had his wife 'tried'(unsuccessfully) for adultery. In fact, it might be argued tat he was himself a bigamist, for he had made a secret marriage in 1785, a decade before his official wedding.
In doing so, the then Prince of Wales had contravened the Royal Marriages Act of 1772 which required ( and still requires) the monarch's consent to the marriage of any member of the Royal Family under the age of 25 (expcepting descendants of princesses married into foreign dynasties). Over that age, notification must be made to the Privy Council, and after a year the wedding may take place.
George IV's brother the Duke of Sussex married twice in contravention of the Act. The death of George's only daughter in 1817 left only himself, his six brothers and five sisters in the line of succession. Of the princes, three were married but without a (legitimate) child; three were unmarried; one was illegally married. Within approximately two months of each other, in 1818, the three bachelor princes married. The future Queen Victoria was born in 1819.
