Fortune now began to dispense her favours to Eugenius with a liberal hand. In the spring of the year 1435, Fortebraccio, having received intelligence that Francesco Sforza had marched into Romagna to oppose Piccinino, who was preparing to invade that district at the head of a large body of troops, made a forced march, and surprising Leone Sforza, who had been left at Todi with an army of one thousand horse and five hundred foot, compelled him and the greater part of his forces to surrender at discretion. His triumph was, however, but of short duration. Whilst he was employed in the siege of Capo del Monte, he was attacked by Alessandro Sforza, and after an obstinate engagement, in which he received a mortal wound, his troops were entirely defeated. This event, which rid Eugenius of a formidable and implacable foe, prepared the way for a treaty of peace between him and his various enemies. The pontiff derived considerable advantages from the terms of this treaty, in consequence of which he regained possession of Imola and Bologna, and saw Romagna freed from the miseries of war.[240] On the second of February in this year Joanna, queen of Naples, died, by her last will leaving the inheritance of her kingdom to Regnier of Anjou. The claim of Regnier was, however, disputed by Alfonso of Arragon, who, by virtue of the act of adoption which Joanna had annulled, asserted his title to the Neapolitan crown. Whilst the kingdom of Naples was divided and harrassed by these contending claimants, Eugenius ordered Vitelleschi to take possession of certain towns situated on its frontiers, the sovereignty of which had long been asserted, and occasionally enjoyed, by the Roman pontiffs. Vitelleschi executed this commission with his usual good fortune; and by the conquests which he made in the Neapolitan territories, still farther extended the power of his master.[241]