Hezzelin I (also called Hezilo or Hermann), Count in Zülpichgau (died 1033), son of count palatine Hermann I of Lotharingia.
He married a daughter of Duke Conrad I of Carinthia and had:
Heinrich I Count Palatine of Lotharingia from 1045 until 1060;
Herman, Count of Avelgau
Conrad III of Zulpichgau, Duke of Carinthia from 1056 until 1061 (died 1061).