Windsor Castle
While it was William the Conqueror who first built the castle, he didn’t live in the castle, it was used as a defensive base at the time. The Castle has been enlarged and restructured by different kings and queens during their reigns. Find out more about who built the Castle. The first king to use Windsor Castle as a residence was Henry I. Henry’s marriage to Adela, the daughter of Godfrey of Louvain, took place in the Castle in 1121. The first Plantagenet king, Henry II, lived at Windsor and built extensively there between 1165 and 1179. Windsor was also one of the favourite residences of Henry III, and he invested heavily in the royal accommodation at the Castle during his reign from 1216. It was Edward III who left the greatest impression on Windsor in the 14th-century. Windsor was the intended centre of his court and government, and the seat of the newly founded Order of the Garter.