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Tower of London has played prominent role in English history. It was besieged several times and controlling it has been important to controlling country. Tower has served variously as armoury, treasury, menagerie, home of Royal Mint, public records office, and home of Crown Jewels of United Kingdom. From early 14th century until reign of Charles II, procession would be led from Tower to Westminster Abbey on coronation of monarch. In absence of monarch, Constable of Tower is in charge of castle. This was powerful and trusted position in medieval period. In late 15th century castle was prison of Princes in Tower. Under Tudors, Tower became used less as royal residence, and despite attempts to refortify and repair castle its defences lagged behind developments to deal with artillery.