Lambert I, Count of Louvain
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Count Lambert "the Bearded" was the first person to be described as a count of Leuven in a surviving contemporary record, being described this way relatively late in life, in 1003. Wikipedia
Born: Leuven, Belgium
Died: September 12, 1015, Florennes, Belgium
Grandchildren: Henry II, Count of Louvain, Gerberga of Boulogne, Adela of Louvain, and more
Grandparents: Reginar II, Count of Hainaut, Hug I de Nordgau, and NN van de Betuwe
Children: Lambert II, Count of Louvain, Henry I, Count of Louvain, and Mathilde de Louvain
Parents: Reginar III, Count of Hainaut and Adela of Louvain
Spouse: Gerberga of Lower Lorraine