Adolf I
Adolf I, Count de la Mark (German: "Adolf I. Graf von der Mark und Krickenbeck") (c. 1182? – 28 June 1249), until 1226 also known as Adolf I, Count of Altena-Mark. He was son of Frederick I, Count of Berg-Altena and Alveradis of Krickenbeck, daughter of Reiner of Krieckenbeck-Millendonk.