House of Leiningen
The Lordship of Limburg passed to the House of Isenburg between 1219 and 1221 as an inheritance through the male line of the extinct House of Leiningen. Gerlach IV of Isenburg who succeeded, with his brother Henry II, their father Count Henry I of Isenburg-Grenzau between 1220 and 1227, chose Limburg as his residence. He took the title Lord of Limburg in 1248. On May 22, 1258, Gerlach and Henry divided the inheritance between themselves. Gerlach won sole possession of the city of Limburg and took the title Gelach I, Count of Limburg.