Queen Elizabeth personally owns Balmoral Castle in Scotland, and the Sandringham Estate in the east of England.
The royal inherited the real estate from the father, and has donated particular properties to her grandchildren as wedding gifts in the past.
Prince William, 36, who is second in line to the throne, and his wife Kate Middleton, 36, were given the country home Anmer Hall, in the grounds of Sandringham Estate, following their nuptials in 2011.
The Duke and Duchess of Cambridge lived in the Norfolk home for the first few years of their marriage, before later moving back to London.
Earlier this year, Prince Harry, 34, who is now the sixth heir to the throne, married American actress Meghan Markle, 37.
Following their wedding, the pair took on the role of Duke and Duchess of Sussex, and received an extravagant gift from the Queen.
The gift took the form of York Cottage, a country house in the grounds of Sandringham Estate.