Tyre was now again besieged and was on the point of capture when the besieged were relieved by the arrival of Conrad, son of the Marquis of Monferrat. The defence was now fought with such vigour that Saladin abandoned it and made an attack upon Tripoli, but with no better success, although he succeeded in forcing Bohemond, Prince of Antioch, and ruler of Tripoli, to submit on terms favourable to himself. After this, Saladin took part in the defence of the ever-memorable siege of Acre, which called forth deeds of gallantry and heroism on both sides, and which lasted for two years, during which it roused the interest of the whole of the Christian world. The invading army were in time reinforced by the redoubtable Richard Coeur de Lion, King of England, and Philip II. of France, and, breaking down all opposition, they captured the city, and floated upon its walls the banners of the cross in the year 1191 A.D. Unfortunately for the good name of the Christians, an act of ferocious barbarity marred the lustre of their triumph, for 2,700 Moslems were cut down in cold blood in consequence of the failure of Saladin to fulfil the terms of the capitulation; and the palliative plea that the massacre was perpetrated in the heat of the assault can scarcely be urged in extenuation of this enormity. While many historians have laid the blame on King Richard, the historian Michaud believes it rather to have been decided on in a council of the chiefs of the Crusade. After a period of rest and debauchery, the army of the Crusaders, led on by King Richard, began to march towards Jerusalem. Saladin harassed his advance and rendered the strongholds on the way defenceless and ravaged the whole country. Richard was nevertheless ever victorious. His great personal bravery struck terror into the Moslems, and he won an important victory over them at Arsur. Dissensions now broke out among chiefs of the Crusaders, and Richard himself proved to be a very uncertain leader in regard to the strategy of the campaign. So serious were these drawbacks that the ultimate aim of the enterprise was thereby frustrated, and the Crusaders never attained to their great object, which was the re-conquest of Jerusalem. At the time when the Christian armies were in possession of all the cities along the coast, from Jaffa to Tyre, and the hosts of Saladin were seriously disorganised, a treaty was concluded and King Richard sailed back on the return journey to England. The glory acquired by Saladin, and the famous campaigns of Richard Cour de Lion, have rendered the Third Crusade the most memorable in history, and the exploits of the heroes on both sides shed a lustre on the arms of both Moslems and Christians.