making the journey home as her husband did, and she did not see England until after his death. After his release from German captivity, Richard showed some regret for his earlier conduct, but he was not reunited with his wife. The marriage remained childless. In the Holy Land Richard landed at Acre on 8 June 1191. He gave his support to his Poitevin vassal Guy of Lusignan, who had brought troops to help him in Cyprus. Guy was the widower of his father's cousin Sibylla of Jerusalem and was trying to retain the kingship of Jerusalem, despite his wife's death during the Siege of Acre the previous year. Guy's claim was challenged by Conrad of Montferrat, second husband of Sibylla's half-sister, Isabella: Conrad, whose defence of Tyre had saved the kingdom in 1187, was supported by Philip of France, son of his first cousin Louis VII of France, and by another cousin, Leopold V, Duke of Austria. Richard also allied with Humphrey IV of Toron, Isabella's first husband, from whom she had been forcibly divorced in 1190. Humphrey was loyal to Guy and spoke Arabic fluently, so Richard used him as a translator and negotiator. Richard and his forces aided in the capture of Acre, despite Richard's serious illness. At one point, while sick from arnaldia, a disease similar to scurvy, he picked off guards on the walls with a crossbow, while being carried on a stretcher covered "in a great silken quilt". Eventually, Conrad of Montferrat concluded the surrender negotiations with Saladin's forces inside Acre and raised the banners of the kings in the city. Richard quarrelled with Leopold of Austria over the deposition of Isaac Komnenos (related to Leopold's Byzantine mother) and his position within the crusade. Leopold's banner had been raised alongside the English and French standards. This was interpreted as arrogance by both Richard and Philip, as Leopold was a vassal of the Holy Roman Emperor (although he was the highest-ranking surviving leader of the imperial forces). Richard's men tore the flag down and threw it in the moat of Acre. Leopold left the crusade immediately. Philip also left soon afterwards, in poor health and after further disputes with Richard over the status of Cyprus (Philip demanded half the island) and the kingship of Jerusalem. Richard, suddenly, found himself without allies. Richard had kept 2,700 Muslim prisoners as hostages against Saladin fulfilling all the terms of