Bayezid's first major role is as governor…

Timur visits horrific punitive destruction upon the city and state of Urganj and upon the Jats of the White Horde, who had supported Tokhtamysh, then pursues him, unsuccessfully, in 1386.

The Belorussians, whose lands had been incorporated into the expanding Grand Duchy of Lithuania after the disintegration of Kievan Rus' in the thirteenth century, at first exerted a strong religious and cultural influence on the pagan Lithuanians; but the position of the Orthodox Belorussians began to decline after the dynastic union of Lithuania and Poland in 1386 and the Lithuanians’ consequent conversion to Latin Christianity.

Charles III, King of Naples, obtains the Hungarian crown in 1385 as Charles II, but is assassinated on February 17, 1386.

He is succeeded in Naples by his son Ladislas and in Hungary by Sigismund, the younger son of the late Holy Roman emperor Charles IV and brother of Emperor Wenceslas.

Twelve-year-old Queen Jadwiga (Hedwig), in an arranged union engineered by the Polish nobility in 1386, marries Ladislas Jogaila, the thirty-something grand duke of Lithuania, who is baptized a Latin Christian and crowned king of Poland as Wladyslaw II (or V) Jagiellio.

Poland and Lithuania are thus informally united.

Ottoman sultan Murad I wins additional Balkan victories at Sofia in 1385 and …

…Nish in 1386.

Murad has meanwhile extended his power in Anatolia as far as Tokat and …

…consolidated his authority in Ankara.

Through marriage, purchase, and conquest he also acquires territories from the principalities of Germiyan, Tekke, and Hamid.

Murad's son Bayezid at Yenisehir in 1386 takes as his fifth wife a daughter of Emperor Manuel Palaeilogos.

The city of Hamadan, its fortunes following the rise and fall of regional powers, is completely destroyed during the Timurid invasion of 1386.