Background
Frederick was the son of Eberhard I, Count of Berg-Altena, and inherited the south-eastern territory of Altena.
Frederick was the son of Eberhard I, Count of Berg-Altena, and inherited the south-eastern territory of Altena.
Adolf I of Altena (c1194–1249). Friedrich of Altena (fl 1199). Genealogische Handbuch des Adels, Gräfliche Häuser A Band II, 1955.