of Richard III and is sometimes referred to as "Richard the Master-Builder" or "Richard of Eastwell", but it has also been suggested he could have been Richard, Duke of York, one of the missing Princes in the Tower. He died in 1550. Legacy Richard's Council of the North, described as his "one major institutional innovation", derived from his ducal council following his own viceregal appointment by Edward IV; when Richard himself became king, he maintained the same conciliar structure in his absence. It officially became part of the royal council machinery under the presidency of John de la Pole, Earl of Lincoln in April 1484, based at Sandal Castle in Wakefield. It is considered to have greatly improved conditions for northern England, as it was intended to keep the peace and punish lawbreakers, as well as resolve land disputes. Bringing regional governance directly under the control of central government, it has been described as the king's "most enduring monument", surviving unchanged until 1641. In December 1483, Richard instituted what later became known as the Court of Requests, a court to which poor people who could not afford legal representation could apply for their grievances to be heard. He also improved bail in January 1484, to protect suspected felons from imprisonment before trial and to protect their property from seizure during that time. He founded the College of Arms in 1484, he banned restrictions on the printing and sale of books, and he ordered the translation of the written Laws and Statutes from the traditional French into English. During his reign, Parliament ended the arbitrary benevolence (a device by which Edward IV raised funds), made it punishable to conceal from a buyer of land that a part of the property had already been disposed of to somebody else, required that land sales be published, laid down property qualifications for jurors, restricted the abusive Courts of Piepowders, regulated cloth sales, instituted certain forms of trade protectionism, prohibited the sale of wine and oil in fraudulent measure, and prohibited fraudulent collection of clergy dues, among others. Churchill implies he improved the law of trusts. Richard's death at Bosworth resulted in the end of the Plantagenet dynasty, which had ruled England since the succession of Henry II in 1154. The last legitimate male Plantagenet, Richard's nephew Edward, Earl of Warwick (son of his brother George, Duke of Clarence), was executed by Henry VII in