The Radivojević family, later known as Vlatković, were a prominent Bosnian nobility during the 14th and 15th century.
History
They were vassals to Kosače, who were the lords of the southeastern region of Kingdom of Bosnia at the time, and with whom the family often quarreled for the reason of growing Kosače arbitrariness as they tried to gain and deepen their autonomy from Bosnia royal dominion. Members of Radivojević were participants in King Tomaš's engagements in restoration of royal authority over Kosače domains, and in particular over the towns of Drijeva and Blagaj. Religious situation on the land controlled by the family was ambiguous, and not much different from other territories under medieval Bosnian state. Religious representation very much depended on era, with different family generation being involved with either Catholicism and-or Bosnian Church as the political circumstances shifted and a situation on the ground demanded it.