The English occupation of Tournai has recently generated far-reaching claims about its importance; allegedly Tournai provided a foretaste of certain developments of the Henrician Reformation. This article argues that Tournai was treated as an integral part of Henry VIII's ‘kingdom of France’ and its status consistently distinguished from that of the English kingdom. It was not, as has been suggested, granted representation in the English parliament. The argument that advanced ideas of ‘sovereignty’ derived from fifteenth-century French thought entered into English political discourse through Tournai is also countered. Important jurisdictional points were raised, notably over the administration of the bishopric, involving three powers, England, France, and the Habsburg government of Flanders. But Henry's insistence on his rights as a sovereign prince were directed against France, not, as has been claimed, against the papacy. Nothing in Henry's dealings with Tournai transcended well-established English doctrine and practice about the relationship between the political authority and the church. Nor did Henry's treatment of the conquered town evoke novel doctrines of royal power; it followed closely precedents set by Henry V. The conquest of Tournai increased the self-confidence of Henry VIII's government in both domestic and international affairs; but largely through Henry's belief that he was successfully emulating the military achievement of Henry V, not through any input of novel political doctrine.