Kenilworth Castle is a castle in the town of Kenilworth in Warwickshire, England which was founded during the Norman conquest of England; with development through to the Tudor period. It has been described by the architectural historian Anthony Emery as "the finest surviving example of a semi-royal palace of the later middle ages, significant for its scale, form and quality of workmanship".[1] Kenilworth played an important historical role: it was the subject of the six-month-long siege of Kenilworth in 1266, thought to be the longest siege in Medieval English history, and formed a base for Lancastrian operations in the Wars of the Roses. Kenilworth was the scene of the removal of Edward II from the English throne, the perceived French insult to Henry V in 1414 of a gift of tennis balls (said by John Strecche to have prompted the campaign that led to the Battle of Agincourt), and the Earl of Leicester's lavish reception of Elizabeth I in 1575.