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In Merovingian times, Belgian Limburg was part of Austrasia, and in particular it appears that parts of the Haspengouw were under the control of the Pippinid family, and later their Carolingian descendants. This family were "mayors" of the Merovingian court until they eventually took over rule more openly. Pepin the short became the first Pippinid King of the Franks in 752. The founder of the Pippinids was Pepin of Landen, who was probably born in Landen in Belgian Limburg.