Narimantas supported his brother Jaunutis when he was deposed by Algirdas and Kęstutis in 1345. In order to avoid getting killed by his younger brothers, he escaped Vilnius in autumn 1344. Narimantas travelled to Jani Beg, Khan of the Golden Horde, asking for support against Algirdas. Though he failed to solicit support, he is rumoured to have married a Tatar princess (possibly as second wife). After returning, Narimantas reconciled with Algirdas and was killed leading the Battle of Strėva against the Teutonic Knights on 2 February 1348. His descendants include Princes Kurakin, Galitzine, Khovansky, Korecki.