• Born date: n.a.
  • Born in: Banate of Bosnia
  • Death date: 1391-03-10
  • Death in: Kingdom of Bosnia
Tvrtko I of Bosnia

Stefan (Stephen) Tvrtko I (1338 – 10 March 1391) was the Ban of Bosnia during 1353–77, King of Bosnia from 1377–91. A member of the Kotromanić dynasty, which ruled Bosnia in the middle ages.

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