origin from the Lithuanians, I think it right to subjoin some details of their genealogy.
A certain Prince Vitenen ruled over the Grand Duchy of Lithuania, whom, according to the Polish annals, Gedemin, his servant slew, and afterwards gained possession both of his duchy and his wife. By her he had several sons,—the two principal of whom were Olgird and Kestud. Kestud was the father of Vithold, otherwise called Vitowd, and Anna, the wife of Janusius, Duke of Masovia. Vithold left an only daughter, Anastasia, who was given in marriage to Basil, Duke of Muscovy, and was named Sophia. She was the mother of Vasiley, father of the great Ivan, and grandfather of Vasiley, prince of the Russians, to whom I was sent as ambassador.
Moreover, Kestud was thrown into prison by his brother Olgird, and died miserably. Vithold also, than whom Lithuania has never produced a greater man, and who took the name of Alexander at his baptism, died in 1430. Olgird, son of Gedemin, amongst other sons whom he had by his wife Maria, a Christian princess of Tver, had Jagelon. He in his lust of dominion not only affected the kingdom of Poland, but Hedwige herself also, who at that time wore the crown, and who was betrothed to William Duke of Austria, and with the consent of her relatives and the primates of both kingdoms, had, after the royal fashion, lain with him before attaining a marriageable age. Jagelon presently sends ambassadors into Poland and asks for the kingdom and the hand of Hedwige. Moreover, in order to obtain the concurrence of the Poles, and to constitute himself a proper candidate, he promised among other things, that he and his brothers, together with the duchies of Lithuania and Samogithia, would embrace the Christian religion; and with other promises of the sort, he so drew over the Poles to his cause, that Hedwige, overruled by their authority, and even against her own will, rescinded her
