The above order, issued from Windsor by Edward II in November 1317, lies behind the writing of this paper. Almost a throwaway reference that has hitherto been overlooked by scholars of Clarendon Palace and its park, the mandate might be considered at best noteworthy (and at worst insignificant) by late-medieval landscape historians. Yet at a local level its unambiguity, verified by other documentary sources, reveals that while Clarendon Park in Wiltshire is undeniably ancient, its size did not remain constant throughout the late medieval period. The deer park, which is among the best-preserved medieval royal hunting spaces in the country, is well-known as the largest ever to have existed in England (and probably in Europe). At around 16 km (about 10 miles) in circumference and 1,737 hectares in area, it far exceeded the average of 40–120 hectares. But what we see today may well be the result of an imparkment carried out not by Henry III when the palace was at its zenith, as is commonly supposed, but by Edward II, who apparently showed rather less interest, and at a time when Clarendon was rarely visited by the court.

The assarts in question first appear in records of arrentations of wastes ordered to be taken in 1299–1305 by Edward I. An inquisition into the same, held at nearby Salisbury in 1304, shows that the prior held 112 acres, le Peleter 32½, the de Grimsteads 20 and de Micheldevre 22. True, this is considerably less than the park's present 4,292 acres, but the assarts may only have been recorded due to their arrented status, while land pertaining to the king alone was left unmentioned. It is possible, given the areas occupied, to suggest that the assarts were located in the south and east of the park (see Figure 1).