Meanwhile, open hostilities had begun between John and the Lusignans; and so far as can be made out from the scanty evidence available, it seems to have been John who began them. A French historian of the time asserts that the castle of Driencourt in Normandy, which belonged to Ralf of Lusignan as count of Eu in right of his wife, was seized by John’s orders while Ralf was in John’s service in England.[336] It is certain that John, on March 6, 1201, issued letters patent to Hugh of Bailleul and Thomas of St. Valery authorizing them to attack Ralf’s territories at the close of Easter and “do him all the harm they could,” and promising that they should never be compelled to make good any damage which they might inflict upon him; while on the same day one William “de Kaev” was despatched on a mission to the inhabitants of Driencourt and of the whole county of Eu to make arrangements for mutual security between them and the king, without reference to their count.[337] Two days later John summoned all his faithful barons, knights, clerks, burghers, and other tenants of the county of La Marche “to come to his service, and do to him what they had been wont to do to his predecessors.”[338] In other words, he claimed the direct ownership of the county, to which his father had indeed been entitled by purchase from the late Count Adelbert and by the homage of its tenants, but of which Henry had never been able and Richard had never even tried to take possession, and which Hugh of Lusignan had now held for more than twenty years. If their oath of liege homage to John had hitherto restrained Hugh and Ralf from giving vent to their anger at John’s marriage, it restrained them no longer now. They at once laid a complaint against John, for unjust aggression and spoliation, before the king of France as lord paramount of Aquitaine.[339] Ralf formally renounced his allegiance to John,[340] and Hugh, with all the forces that he could muster, invaded Poitou, where, as usual, he found plenty of allies ready to join him.[341] The most important of the Poitevin barons, indeed, Almeric of Thouars, was won over to John’s side by the diplomacy of Eleanor; but the danger appeared so great that both Eleanor and Almeric besought John to come over and deal with it in person as soon as he possibly could; and at the end of April the count of Angoulême and John’s other friends in the south proposed sending Almeric to confer with John in England.[342]