when passing through Switzerland, and after a number of reverses, the expedition had to be abandoned. In 1379, after the death of Isabella of England, Coucy married Isabelle in 1386, daughter of John I, Duke of Lorraine and Sophie von Württemberg; they had one daughter, Isabel de Coucy (date of birth unknown; died 1411). The 1390 Barbary Crusade saw Coucy as a participant. Coucy died at age 56, on 18 February 1397, at Bursa, Ottoman Empire after participating in the last medieval crusade against the Ottoman army of Bayezid I and his allies. The crusade climaxed with the calamitous Battle of Nicopolis on 28 September 1396, one of the most crushing military defeats in medieval European history. After a successful initial engagement against part of the Ottoman force, Coucy and other senior knights recommended a pause to regroup, but they were overruled by the impetuous younger knights, who wrongly believed they had just defeated the main force of Bayezid's army. Eager for glory, these knights then led their forces in a reckless pursuit of the fleeing Turks, only to run up against a fresh corps of Turkish sipahis that Bayezid had kept in reserve. A desperate battle ensued, but at the height of the fighting Bayezid's Serbian ally arrived with reinforcements, turning the tide in the Turks' favour. The Christian forces were utterly routed, thousands of Crusader soldiers were killed on the field, and nearly all the knights commanding the Crusader army, including Coucy, were either dead or captured. Coucy and many other leading nobles were taken prisoner, and the next day Bayezid forced the knights to watch the day-long mass beheading of hundreds (and possibly as many as 3000) Crusader soldiers who had been captured by the Turks. The prisoners were then stripped of most of their clothing and in most cases even their shoes, and force-marched 350 km to Gallipoli. During the march, Coucy reportedly came close to death from exposure but was saved by another captive, who gave him his coat. From Gallipoli the prisoners were then transported to Turkey and held prisoner, awaiting the payment of ransoms. Although strenuous efforts were made in France over the next few months to arrange the release of the captives, Coucy died before his bounty could be paid, due to an outbreak of the bubonic plague among the Turks, although it is likely that he had already been greatly weakened