The courage and heroism of Cervantes excited the respect of the friars of the Order of Mercy, who resided at Algiers for the purpose of treating for the ransom of the Christian captives. This order had been established as far back as the twelfth century by pope Innocent III. It was originally founded by two French hermits, who, dedicated to a holy life in solitude, believed themselves called upon by God to take more active service in the cause of religion. They repaired to Rome, and were well received by pope Innocent, who saw the benefits that might arise to Christianity from the pious labours of these men. He instituted an order, therefore, whose members were to dedicate themselves to the liberating of Christian slaves out of the hands of the infidels. It was called the order of the most Holy Trinity, for the Redemption of Captives. At first its labours were probably most in use to ransom crusaders, taken prisoners in the wars of Palestine. Africa afterwards became the scene of their greatest labours and dangers: various members of the order were regularly appointed, and resided in Algiers, for the purpose of carrying on treaties for the ransom of captives in particular. Each kingdom of Spain had its peculiar holy officer, a sort of spiritual consul, who transacted all the affairs of redemption and liberation for the unfortunate slaves. Cervantes's case was peculiar: distinguished among his fellow slaves, the dey paid him the inconvenient compliment of rating his ransom highly, and set the price of 1000 golden crowns on him; application was made in Spain, and it was endeavoured to collect his ransom. His father was now dead, and his mother, donna Leonora, a widow, could only contribute 250 ducats, his sister 50 more. This sum was placed in the hands of the friars Juan Gil and Antonio de la Vella, who arrived in Algiers in May, 1580, for the purpose of treating for the redemption of various captives. For a long time they were unable to bring the dey into any terms with regard to Cervantes: the sum of 1000 golden ducats was exorbitant, yet during several months he refused to take less. At last he received an order from the sultan, which appointed him a successor, and enforced his return to Constantinople. At first he threatened to take Cervantes, whom he kept on board his galley, with him; and the friars raised their offers to prevent this disaster: at last he agreed to receive 500 golden crowns as his ransom: on the 19th of September, 1580, the bargain was completed. Hassan sailed for Constantinople, and Cervantes was set on shore at Algiers, free to return to Spain.[62]