While the Eastern Croises were thus engaged in apportioning among themselves, the rich domains of the Greek Empire, Simon de Montfort, who had abandoned the expedition, when its destination was changed from Jerusalem to Constantinople, was not less actively employed in a domestic crusade, published by Innocent III., against the heretics of the south of France. In the province of Toulouse, certain sects had arisen variously known as Believers, Perfects, and Vaudois, but all rejecting some of the tenets of Rome, and from the city of Albi, designated by the general name Albigeois. In his misguided zeal, Innocent III. despatched three legates to constrain these Albigeois to abjure their heresies and return to the bosom of the church. He empowered them to employ for this purpose, "the sword, water and fire, as these good monks should find it necessary to use one or the other, or all three together for the greater glory of God." Though the Albigenses, like other Christians, professed the doctrines of peace, they were somewhat infected with the warlike spirit of the age; consequently becoming exasperated at the executions deemed necessary to bring the lambs into the fold, they rose upon the missionaries, and stoned one of them to death. The pope retaliated by proclaiming the usual indulgence to those who should engage in the holy war, for exterminating the heretics. Count Raimond VI., the husband of Joanna, immediately took up arms in defence of his subjects, and against him Simon de Montfort headed the army of the church. With him came a monk of great austerity, afterwards St. Dominic, the founder of the Dominican order of friars, who encouraged the soldiers in their work of blood. The city of Beziers long held out against them. It was finally taken, the inhabitants given up to slaughter, and when a difficulty arose about discriminating between the heretics and the catholics, "Slay them all," said Dominic, "the Lord will know his own." It is estimated that the number that perished was sixty thousand. The war went on, characterized, as such wars always are, by the atrocity of private murder, and wholesale butchery, till de Montfort led his army to the siege of Toulouse. Count Raimond, beset on every side by foes, applied to his brother-in-law, the King of England, to the King of Arragon, whose sister he had married after the death of Joanna, and to Philip Augustus his liege lord. The first engaged in domestic broils, and the last involved in a contest with the pope, concerning the divorce of Ingeborge, could render him no assistance, but Don Pedro King of Arragon, entered warmly into the contest and fell bravely fighting in the battle of Muret. The count was at last compelled to conclude an ignominious peace with the pope; and thus the forces of the church were victorious in the south of France, as they were in the Greek Empire. * * * * *