Meanwhile the king himself was again called over sea by fresh troubles in Gaul. The king of France and the count of Flanders had been quarrelling for the last two years over the territories of the latter’s deceased wife, the counties of Amiens and Vermandois;[1115] Henry’s last act before he left Normandy had been to arrange a truce between them.[1116] Two months later--in August 1184--while Philip of Flanders was away in England on a pilgrimage to the martyr’s tomb at Canterbury, Philip of France broke the truce by stirring up his father-in-law the count of Hainaut to attack Flanders in his behalf: Philip of Flanders appealed for help to his other overlord the Emperor Frederic; the archbishop of Cöln, who had been his fellow-pilgrim, at once joined him in a counter-invasion of Hainaut;[1117] and the incalculable dangers of a war between France and Germany were only averted by Frederic’s wise reluctance to interfere, strengthened, we may perhaps suspect, by the influence of the English king. It seemed indeed as if nothing but Henry’s presence could avail to keep order in Gaul. When he returned thither, in April 1185,[1118] his first task was to pacify another quarrel between his own sons. This time the elder one seems to have been the aggressor; and Henry grew so angry that he once more summoned Richard to give up Aquitaine altogether, not, however, to either of his brothers, but to its own lawful lady, his mother, Queen Eleanor. Despite all her faults, Eleanor was reverenced by her sons; Richard especially treated her throughout his life with the utmost respect and affection; and the demand thus made in her behalf met with immediate submission.[1119] For nine months Henry’s dominions were quiet, and his hands were free to deal with the quarrels of France and Flanders. But before he had succeeded in pacifying them, a further complication was added. King Bela of Hungary made suit to Philip of France for the hand of his sister the widowed Queen Margaret,[1120] and this at once re-opened the question about her dower; for the agreement made two years before had been conditional upon Richard’s marriage with Adela, and as this event seemed as far off as ever, Philip again laid claim to the whole dowry, including Gisors. He was however too much in need of Henry’s assistance in his dispute with Flanders over the dower-lands of Isabel of Vermandois to risk a quarrel with him about those of the young queen; and by Henry’s tact and diplomacy both questions were settled in a conference at Gisors itself early in 1186.[1121] The count of Flanders gave up Vermandois to Philip Augustus,[1122] while Philip and Margaret again consented, in return for a money-compensation from Henry, to make Gisors over to him on the old condition--that Richard should marry Adela without further delay.[1123] The condition however remained unfulfilled. Richard was again despatched into Aquitaine, not indeed as its duke--for Henry had placed all its fortresses under