with a crossbow himself. Saladin allegedly said, "This man is an unbeliever and very cruel". But he had succeeded in calling Saladin's bluff: the old Marquis William was released, unharmed, at Tortosa in 1188, and returned to his son. On 30 December, Conrad's forces launched a dawn raid on the weary Egyptian sailors, capturing many of their galleys. The remaining Egyptian ships tried to escape to Beirut, but the Tyrian ships gave chase, and the Egyptians were forced to beach their ships and flee. Saladin then launched an assault on the landward walls, thinking that the defenders were still distracted by the sea battle. However, Conrad led his men in a charge out of the gates and broke the enemy: Hugh of Tiberias distinguished himself in the battle. Saladin was forced to pull back yet again, burning his siege engines and ships to prevent them from falling into enemy hands. Struggle for the crown In summer 1188, Saladin released king Guy of Lusignan, the husband of Queen Sibylla, from captivity. A year later, in 1189, Guy, accompanied by his brother Geoffrey, appeared at Tyre and demanded that Conrad hand over the keys to the city to him. Conrad refused this demand, and declared that Guy had forfeited his rights to be king of Jerusalem at the Battle of Hattin in 1187. He said that he was holding the city until the arrival of the kings from Europe. By this, he was invoking the terms of Baldwin IV's will, terms already broken by Guy and Sibylla: in the event of the death of his nephew Baldwin V of Jerusalem it had been Baldwin's will that Baldwin V's "most rightful heirs" were to hold the regency until the succession could be settled by Henry II of England, Philip II of France, and the Holy Roman Emperor Frederick I. Conrad would not allow Guy and Sibylla to enter the city, but did allow them to camp outside Tyre's walls with their retainers. Conrad was persuaded by his cousin once-removed, Louis III, Landgrave of Thuringia, to join Guy in the Siege of Acre in 1189. The siege lasted for over two years. In summer 1190, Conrad travelled north to Antioch to lead another young kinsman, Frederick of Swabia, safely back to Acre with the remnants of his cousin Frederick Barbarossa's imperial army. When Queen Sibylla and their daughters died of disease later that year,