222 THE REPUBLIC OF RAGUSA already a tributary to the Turks, and also explains why Sandalj and the King of Bosnia feared to help Ragusa against him, although they were on good terms with the Republic. The Hungarian ambassador, however, was not given the instructions suggested, and a Ragusan envoy had to be sent as well. Finally, Sigismund did intervene directly, and formed an alliance with Bosnia, Ragusa, and Sandalj against Radosav, and 70,000 ducats, of which Bosnia was to pay 40,000, Sandalj 20,000, and Ragusa 10,000, were offered to the Sultan for permission to divide up all his territories between them. The Sultan sent a Pasha to make inquiries on the spot, and he confirmed the Republic’s possession of the land it had bought and Radosav raided, and demanded compensation for the damage inflicted.1 Finally, after endless negotiations at the Sultan’s court at Adrianople2 an agreement was concluded by which the Republic retained the territory it had purchased, and was to keep the interest of the money invested by Radosav at Ragusa for twelve years as compensation; prisoners were to be released on both sides without ransom; certain special enemies of the Republic were to be exiled from Radosav’s court, and all damage done to Ragusan territory in future by his vojvods was to be paid for by him (1432). In 1431 the Council of Basel had met, and one of its most active members was Johannes Stoicus of Ragusa, who made every effort to promote the union of the Eastern and the Western Churches, and end the religious strife in the Balkans with a view to common action 1 Dipl. Rag., 220. 2 An account of them occupies the whole of the tenth book of Resti.