Vilikaila or Viligaila was one of the five elder Lithuanian dukes mentioned in the peace treaty with Halych-Volhynia in 1219.[1] He is mentioned as brother of Daujotas, which leads scholars to believe he was the younger or perhaps less influential brother.[1] The brothers are not mentioned in any other sources.[1] Tomas Baranauskas, a modern Lithuanian historian, believes that Vilikaila and Daujotas might be sons of Stekšys, a Lithuanian duke killed in 1214.[1]