Prince Louis is the third child of Prince William and Kate Middleton. His two older siblings are Prince George and Princess Charlotte.

Prince Harry is the second son of Charles, Prince of Wales, and Princess Diana. He is known for his military service and charitable work.

Prince Philip, Duke of Edinburgh, is the husband of Queen Elizabeth II, the father of Prince Charles and the grandfather of Prince Harry and Prince William.

Kate Middleton, Her Royal Highness the Duchess of Cambridge, married Britain's Prince William in 2011 at Westminster Abbey.

Prince Charles plans to declare Camilla Parker Bowles, his second wife with whom he had a long affair while married to Princess Diana, Queen of England upon his ascension to the throne, a source told The Daily Beast. The palace says Bowles will be “Princess Consort.”

Queen Elizabeth approved of at least one of Princess Margaret’s affairs, claims a new documentary, ‘Elizabeth: Our Queen.’ A friend of the princess says the Queen told her that her sister’s 8-year relationship with landscape gardener Roddy Llewellyn had been good for her.

Queen Victoria was queen of the United Kingdom of Great Britain and Ireland from 1837 to 1901 — the second longest reign of any other British monarch in history.

Queen Elizabeth II of Great Britain is the longest-reigning monarch in British history. She celebrated 65 years on the throne in February 2017 with her Sapphire Jubilee.

Princess Diana was Princess of Wales while married to Prince Charles. One of the most adored members of the British royal family, she died in a 1997 car crash.

Duchess of York Sarah Ferguson is the ex-wife of Britain's Prince Andrew and is also a children's book author and film producer.

On this day in 1936, Edward VIII became first monarch to abdicate the throne after he insisted on marrying a twice-divorced American socialite. He had ruled for less than a year; the next day, his younger brother was proclaimed King George VI.

George VI served as king of the United Kingdom during World War II and was an important symbolic leader. He was succeeded by Queen Elizabeth II, in 1952.

Prince George is the first child of Kate Middleton and Prince William of Wales, and is third in line to British throne.

Prince William is the eldest son of Princess Diana and Prince Charles of Wales, and is next in line for the British throne after his father.

Mary of Teck became Queen Mary, consort of King George V. She was the mother of kings Edward VIII and George VI, and the grandmother of Queen Elizabeth II.

King George III ruled the British kingdom through turbulent times, including the American Revolutionary War, after which the colonies gained independence. Until Queen Victoria, he was Great Britain’s longest-reigning monarch.

Princess Charlotte is the second child of Prince William and Catherine, Duke and Duchess of Cambridge, and is the sister of Prince George.

Queen Elizabeth was the Queen consort of King George VI until his death in 1952. She is best known for her moral support to the British people during WWII and her longevity.

Edward, Earl of Wessex is son to Queen Elizabeth II and husband to Sophie Rhys-Jones. A former theater and television producer, he remains active in charity.

Prince Albert married his first cousin, Queen Victoria of the United Kingdom, at the age of 20, and after his untimely death at age 42, the queen's memory of him guided her for the next 40 years.

Prince Andrew, the brother of Prince Charles, is the Duke of York and seventh in line to the British throne.

Born in 1865, George V served as king of the United Kingdom from 1910 to 1936.

At a summit of the 53-country Commonwealth, Queen Elizabeth II officially backed her son Prince Charles to be her successor as the king of Britain and its former colonies for the first time. The role is not hereditary, so the Commonwealth will have to approve the move first.

Princess Anne, the only daughter of Queen Elizabeth II and Prince Philip, is best known for her charitable work and equestrian talents.