Reginald I
Reginald II of Guelders (), called "the Black" (c. 1295 – 12 October 1343), was Count of Guelders, and from 1339 onwards Duke of Guelders, and Zutphen, in the Low Countries, from 1326 to 1343. He was the son of Reginald I of Guelders and Marguerite of Flanders.