Battle of Nicopolis - Background

Background

There were many minor crusades in the 14th century, undertaken by individual kings or knights. Most recently there had been a failed crusade against Tunisia in 1390, and there was ongoing warfare in northern Europe along the Baltic coast. After their victory at the Battle of Kosovo in 1389, the Ottomans had conquered most of the Balkans, and had reduced the Byzantine Empire to the area immediately surrounding Constantinople, which they later proceeded to besiege (in 1390, 1395, 1397, 1400, 1422 and finally conquering the Byzantine capital in 1453).

In 1393 the Bulgarian tsar Ivan Shishman had lost Nicopolis — his temporary capital — to the Ottomans, while his brother, Ivan Stratsimir, still held Vidin but had been reduced to an Ottoman vassal. In the eyes of the Bulgarian boyars, despots and other independent Balkan rulers, this was a great chance to reverse the course of the Ottoman conquest and free the Balkans from Islamic rule. In addition, the frontline between Islam and Christianity had been moving slowly towards the Kingdom of Hungary. The Kingdom of Hungary was now the frontier between the two religions in Eastern Europe, and the Hungarians were in danger of being attacked themselves. The Republic of Venice feared that an Ottoman control of the Balkan peninsula, which included Venetian territories like parts of Morea and Dalmatia, would reduce their influence over the Adriatic Sea, Ionian Sea and Aegean Sea. The Republic of Genoa, on the other hand, feared that if the Ottomans would gain control over River Danube and the Turkish Straits, they would eventually obtain a monopoly over the trade routes between Europe and the Black Sea, where the Genoese had many important colonies like Caffa, Sinop and Amasra. The Genoese also owned the citadel of Galata, located at the north of the Golden Horn in Constantinople, to which Bayezid had laid siege in 1395.

In 1394, Pope Boniface IX proclaimed a new crusade against the Turks, although the Western Schism had split the papacy in two, with rival popes at Avignon and Rome, and the days when a pope had the authority to call a crusade were long past.

The two decisive factors in the formation of the last crusade were the ongoing Hundred Years' War between Richard II's England and Charles VI's France and the support of Philip II, Duke of Burgundy. In 1389, the war had ground to one of its periodic truces. Further, in March 1395, Richard II proposed a marriage between himself and Charles VI's daughter Isabella in the interests of peace and the two kings met in October 1396 on the borders of Calais to agree to the union and agree to lengthen the Truce of Leulinghem. The support of Burgundy, among the most powerful of the French nobles was also vital. In 1391, Burgundy, trying to decide between sending a crusade to either Prussia or Hungary, sent his envoy Guy de La Trémoille to Venice and Hungary to evaluate the situation. Burgundy originally envisioned a crusade led by himself and the Dukes of Orléans and Lancaster, though none would join the eventual crusade. It was very unlikely that defense against the Turks was considered a particularly important goal of the crusade. Burgundy's interest in sponsoring the crusade was in increasing his and his house's prestige and power and, historian Barbara Tuchman notes, "since he was the prince of self-magnification, the result was that opulent display became the dominant theme; plans, logistics, intelligence about the enemy came second, if at all." In 1394, Burgundy extracted 120,000 livres from Flanders, sufficient to begin preparations for a crusade, and in January 1395 sent word to Sigismund, the King of Hungary that an official request to the King of France would be accepted. (Sigismund became Holy Roman Emperor in 1433).

In August, Sigismund's delegation of four knights and a bishop arrived in the court of Paris to paint a description of how "40,000" Turks were despoiling and imperiling Christian lands and beg, on Sigismund of Hungary's behalf, for help. Charles VI, having secured a peace with England through the marriage of his daughter, was able to reply that "as chief of the Christian kings" it was his responsibility to protect Christianity and punish Sultan Bayezid. French nobility responded enthusiastically to the declaration; Philip of Artois, Count of Eu, the Constable of France, and Jean Le Maingre, the Marshal of France, declared participation in the crusade the duty of every "man of valor".