 Complete the following phrase:  In 1385, Vygantas supported his older brother Jogaila by signing the Union of Krewo. On February 18, 1386, he was baptized as Alexander. In the same year he was betrothed to Jadwiga, daughter of Władysław Opolczyk. He married her in 1390. Polish nobles expected that Władysław would grant Vygantas the Dobrzyń Land, a contested territory between Poland and the Teutonic Knights, as his dowry. Vygantas received Kuyavia from Jogaila instead. In 1388, he supported Poland in an armed conflict with the Teutonic Knights. He also supported Władysław Jagiełło Jogaila in the 