Skalmantas
Skalmantas, also called Skolomend (born c. 1210, died after 1285), is the possible early ancestor of the Gediminid dynasty. He is known only from later sources: the late fourteenth-century Russian poem Zadonshchina has two sons of Algirdas call themselves great-grandsons of Skalmantas.
Scholars debate whether he was Gediminas's grandfather or father, and some identify him with the Sudovian (Yotvingian) leader Komantas. Tradition makes Butigeidis and Butvydas his sons.