The Ordinance concerning the Dunsæte sets out regulations for dealings between the English and Welsh in some part of the frontier between these two peoples. The text is widely assumed to be from the second quarter of the tenth century, but this article argues for a late-tenth- or eleventh-century date. The Ordinance envisages trade and prescribes procedures to settle disputes: it thus reveals cordial contacts between those dwelling along the frontier. This offers an alternative perspective to the focus on kings and conflicts found in many modern accounts of relations between the English and Welsh in the early medieval period.