How the castle transformed from humble beginnings as a defensive tower to become the palace of one of the most indulgent monarchs in history - Henry VIII and then his daughter Elizabeth I.

Revealing Charles III's unusual fitness regime, George III's breakfast of choice, and what George IV brought to Windsor which had never been seen in Britain before.

Queen Victoria and husband Prince Albert move into the castle, dragging it into the 19th century by updating it. Plus: a Victorian facial fashion fad and a surprising castle tradition.

How Edward VII turned Windsor into his ultimate party palace, the love nest used by Edward VIII and Wallis Simpson, and what a teenage Elizabeth II got up to during the Second World War.

Contrasting fortunes - from a young family moving in when Elizabeth II takes to the throne to 1992 when the Queen faces the nightmare of a devastating fire.