Jan Gryfita (first name also spelled Janik or Janisà Âaw, ? - 1167 or 1176) was an archbishop of Gniezno (1149 â c. 1167) and bishop of Wrocà Âaw (1146 â 1149). Together with his brother Klemens, he was a co-founder of the Cistercian Abbey of JÃÂdrzejów. He was likely the patron and fundator of the Gniezno Doors.