1290, whereby a liberty was considered legitimate as long as it could be shown to have been exercised since the coronation of Richard the Lionheart in 1189. Royal gains from the Quo warranto proceedings were insignificant as few liberties were returned to the King, but he had nevertheless won a significant victory by establishing the principle that all liberties emanated from the Crown. The 1290 statute of Quo warranto was only one part of a wider legislative reform, which was one of the most important contributions of Edward's reign. This era of legislative action had started already at the time of the baronial reform movement; the Statute of Marlborough (1267) contained elements both of the Provisions of Oxford and the Dictum of Kenilworth. The compilation of the Hundred Rolls was followed shortly after by the issue of Westminster I (1275), which asserted the royal prerogative and outlined restrictions on liberties. The Statutes of Mortmain (1279) addressed the issue of land grants to the Church. The first clause of Westminster II (1285), known as De donis conditionalibus, dealt with family settlement of land, and entails. The Statute of Merchants (1285) established firm rules for the recovery of debts, and the Statute of Winchester (1285) dealt with security and peacekeeping on a local level by bolstering the existing police system. Quia emptores (1290)issued along with Quo warrantoset out to remedy land ownership disputes resulting from alienation of land by subinfeudation. The age of the great statutes largely ended with the death of Robert Burnell in 1292. Finances, the expulsion of Jews, and Parliament Edward's reign saw an overhaul of the coinage system, which was in a poor state by 1279. Compared to the coinage already circulating at the time of Edward's accession, the new coins issued proved to be of superior quality. In addition to minting pennies, halfpences and farthings, a new denomination called the groat (which proved to be unsuccessful) was introduced. The coinmaking process itself was also improved. The moneyer William Turnemire introduced a novel method of minting coins that involved cutting blank coins from a silver rod, in contrast with the old practice of stamping them out from sheets; this technique proved to be efficient. The practice of minting coins with the moneyer's name on them became obsolete under Edward's rule because England's mint administration became far more centralised under the Crown's authority. During this time, English coins were