South, Raymond (1977). The Book of Windsor. Barracuda Books. pp. 35. ISBN0-86023-038-4. Eodem anno [1110] rex curiam suam tenuit ad Pentecosam apud novam Windlesores
royal.gov.uk
Calculated based on report of area destroyed in 1992 Windsor Castle fire as being 9,000 metres squared, which was reported to be about one-fifth of the total area of the castle. See * [1]
