It is unclear if he is related to , son of Narimantas, who in 1398 acted as a diplomat for Vytautas and signed the Treaty of Salynas, as some sources consider them to be the same person.
The identity of this person is uncertain, with some sources suggesting he might be related to Narimantas's son who acted as a diplomat for Vytautas in 1398 and signed the Treaty of Salynas.