A look at events that took place between 1992 and 2016, including Prince Charles and Princess Diana's divorce and Prince William's 21st birthday party.
Windsor Castle is one of the most recognisable buildings in the world. Millions of tourists flock there each year. But Windsor is loved and cherished most by one person - Her Majesty the Queen
In 1952, the keys to Windsor Castle were handed to Elizabeth Windsor. At 26 years old she was the 40th monarch to take over the Castle. But she was not just a Queen.
The series concludes with a look at 20 years in the life of the Queen and her family. It covers the era from 1972, when she celebrated her 25th wedding anniversary to 1992, when several divorces and a fire at Windsor Castle rocked one of the world's best-loved families.
