Did William the Conqueror build the Tower of London and Windsor Castle?
ASK WHERE { wd:Q37594 wdt:P1830 wd:Q62378 . wd:Q37594 wdt:P1830 wd:Q464955 }
william the conqueror: Q37594 tower of london: Q62378 william the conqueror: Q37594 windsor: Q464955