Dietrich I of Isenberg


Dietrich I, last count of Isenberg and Altena, first count of Limburg , son of Friedrich II of Isenberg, count of Isenberg and Altena.
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Dietrich I was disinherited of all his territories in the First Reich of the Holy Roman Empire following the execution of his father, but with the military support of his uncle the Duke of Limburg, recovered a small territory out of his previous possessions. He built the castles of Limburg and Neu Isenberg and took the title of count of Limburg.
He married Aleidis, countess of Sayn, a daughter of Johann I von Spanheim and Adelheid von Altena. They had issue: