Note 53 — CHAP. XVI.
Thomas Johnes translation
I suppose Monstrelet must mean Jagellon, grand duke of Lithuania, who was called to the throne of Poland in 1386, on condition that he would become a Christian, marry the daughter of the late king, and annex Lithuania to Poland. This last condition, however, was not completely fulfilled until the reign of Sigismond Augustus in 1569.
Baudran.
Jagellon took the name of Uladislaus V. on his baptism; but Hedwige, daughter to the king of Poland, reigned two years before she married Uladislaus.
Anderson.