Otto I of Nassau designated John to act as arbitrator in the division of Otto’s inheritance in 1308. John also worked diligently in his town of Limburg. Near the beginning of his reign, after a great fire destroyed the entire city of Limburg on May 14, 1289, John led a successful reconstruction effort. Already by around 1300 the city had outgrown its walls. John was probably responsible for the construction of the bridge over the Lahn at Limburg, the construction of the church of the Franciscan Monastery, and the founding of the Wilhelmiten monastery. Even the construction of St. Peter's Chapel in Limburg Castle goes back to him. John died on September 29, 1312. He was buried in the Franciscan church of Limburg. His grave stone is still preserved today. Marriages and Children John was married twice and it is unclear which children should be assigned to each marriage. His first marriage was to Elizabeth of Geroldseck (near Strasbourg), daughter of Henry of Geroldseck, Count of Veldenz and Elizabeth of Lichtenberg. With her he probably had the following children: Elizabeth (died after October 27, 1351); married first ca. 1303 to Baron Ulrich I of Bickenbach (now part of Engelskirchen) (died 1339); remarried before June 24, 1340 to Count John II of Katzenelnbogen (died March 2, 1357) Lisa; married before 1300 to Count Henry III of Solms-Braunfels (died after February 22, 1314) His second marriage was to Uda of Ravensberg. This marriage probably accounted for the following children: Gerlach II "The Elder" John, listed 1373/79 Jutta, listed 1330/35; married Count Friedrich VI of Leiningen-Dagsburg (died 1342) Maria, abbess of Altenberg Abbey in Wetzlar (1343–1349) Imagina (died 1337/43); her first marriage was to Count Ulrich of Truhendingen (from present-day Wassertrüdingen) before 1302; her second marriage was to Count Louis VIII of Oettingen before August 14, 1332. Sources (Unchanged reprint of the baroque 1720 edition from Verlag Winckler, Wetzlar). . External links History of Limburg Castle House of Isenburg 1312 deaths Year of birth unknown