Eberhard IV of Berg, count of Altena (also called Eberhard I von Altena) (born 1140, died 23 January 1180, buried in Altenberg), son of Adolf IV of Berg, count of Berg and Altena. Altena is a town in the district Märkischer Kreis, in North Rhine-Westphalia, Germany Eberhard IV of Berg, count of Altena (also called Eberhard I von Altena) (1140 – 23 January Events 393 - Roman Emperor Theodosius I proclaims his nine year old son Honorius co-emperor Adolf IV of Berg count of Berg from 1132 until 1160 and of Altena (died after 1161 son of Adolf III of Berg count of Berg and Hövel
He married Adelheid von Arnsberg (van Cuyck) (died 1200), a daughter of Heinrich I count von Arnsberg (born 1123, died 1185) and Ermengarde (Irmgard) von Freusburg (died 1203).
He inherited the eastern territorium of County of Berg and became the 1st count of Altena from 1161, and Vogt of Werden and Cappenberg (1166-1180). Berg was a medieval territory in today's North Rhine-Westphalia, Germany. Altena is a town in the district Märkischer Kreis, in North Rhine-Westphalia, Germany
He left issue: