When his father died in 1430, Gumprecht inherited Alpen, Rösberg, Garsdorf and the office of Hereditary Bailiff of Cologne. In 1435, Gumprecht and his wife Margaret received half the Lordship of Bedburg from her father, Count William I of Limburg-Broich. In 1442, they also received the County of Limburg. When William I died in February 1459, Gumprecht and Margaret inherited Hackenbroich and the other half of Bedburg.
However, Dietrich VI, William II and Henry. who were grandsons of William I's younger brother Dietrich IV, also claimed the County of Limburg and on 25 June 1459 Duke Gerhard VII of Jülich-Berg enfeoffed them with the county. Gumprecht refused to accept this, and an armed conflict ensued. Troops of the three brothers laid siege to Hohenlimburg Castle and captured it. The conflict was resolved by arbitration in 1460. Arbiter was Archbishop Dietrich II of Cologne. He ruled that the County of Limburg should be administered jointly by all parties involved as a condominium and that a castle peace should be observed.
