Nicholas I, Count of Tecklenburg
Nicholas I (c. 1300–c. 1368), son of Gunzelin VI of Schwerin and Richardis of Tecklenburg, inherited Tecklenburg-Ibbendüren and other lands from his uncle Otto V in 1328, founding the Tecklenburg-Schwerin line.
He campaigned against the Frisians and rival knights, lost territory to the bishop of Osnabrück in 1350 but took Iburg in 1354. After inheriting Schwerin in 1357, he sold it to Mecklenburg in 1358. Pope Urban V excommunicated him in 1364.