The building work on the main buildings of the college began in April 1500 on marshy land, supported by large oak beams. The chapel is topped with an imperial crown, i.e. a closed crown, which appears to make a claim to imperial status for the Scottish monarchy. The original was lost in a storm in 1633, and the present crown is a recreation. King's College chapel retains more medieval woodwork than any other Scottish church, including the choir stalls and screen.