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In page Henry I, Duke of Brabant:

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Henry was possibly born in Leuven (Louvain), the son of Count Godfrey III of Louvain[1] and his wife Margaret, daughter of Duke Henry II of Limburg. His father also held the title of a landgrave of Brabant, duke of Lower Lorraine and margrave of Antwerp. Henry early appeared as a co-ruler of his father. In 1180,[2] he married Matilda of Boulogne, daughter of Marie of Boulogne and Matthew of Alsace[1] and on this occasion received the County of Brussels from his father. He acted as a regent while Count Godfrey III went on a pilgrimage to Jerusalem from 1182 to 1184.[citation needed]