"Otto I (c. 1180 – 7 May 1234), a member of the House of Andechs, was Duke of Merania from 1204 until his death. He was ...
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also Count of Burgundy (as Otto II) from 1208 to 1231, by his marriage to Countess Beatrice II, and Margrave of Istria and Carniola from 1228 until his death." - (en.wikipedia.org 11.08.2021)
