sometime between 1290 and 1294, his son Engelbert I inherited his territory, taking the title "Count of Ziegenhain, Lord for Nidda" (Graf von Ziegenhain, Herr zu Nidda). To resolve his difficulties at Neustadt, Engelbert sold the castle and city of Neustadt, along with its dependent villages to Archbishop on 12 March 1294 for 2,200 Cologne marks. For Nidda, the sale got rid of a distant estate, but for Ziegenhain it was seriously damaging, since it meant that the core region of Ziegenhain on the Schwalm river was separated from the area on the Wohra river with the Amt of Rauschenberg. In 1300, a conflict broke out between Engelbert and the Order of St. John, concerning several locations, which led to a military conflict in 1314/15 and was only resolved in 1315. Engelbert married Heilwig, daughter of Louis I of Isenburg-Büdingen in 1286. They had a daughter, Lukardis (Luitgard), but no sons, so there was no male heir when Engelbert died on 6 September 1329. However, King Albert I had given him an assurance in 1300 that, in the absence of any sons, his fiefs would be inherited by his daughter. Lukardis In 1311, Lukardis married her second-cousin, John I of Ziegenhain, a great-grandson of Berthold I, who had been Count of Ziegenhain since 1304. As a dowry, Engelbert and Heilwig gave her their estates at Ulfa, Rodheim, Widdersheim, Dauernheim, Bingenheim, Echzell, Berstadt, Burghards and Crainfeld. On 4 February 1311, the day of the wedding, Lukardis and John asserted their rights and freedoms at Nidda, and they subsequently did so at Treysa and Ziegenhain as well. These assertions were probably carried out in order to ensure the smooth transition of the County to them and their heirs. On 1 April 1323, Emperor Louis IV granted John the city and castle of Nidda as Imperial fiefs (the rest of the county remained a fief of Fulda Abbey). After Engelbert died in 1329, Lukardis nominally reigned as Countess of Nidda until her death in 1333. Second unification with Ziegenhain (1333-1450) After Lukardis' death, Nidda passed to John and both counties were once again united under a single ruler. John had inherited the important role of Hochvogt of Fulda Abbey, but from 1279 this had not included the Vogtei over the Abbey itself. In April 1331, he managed to sign a treaty with the City of Fulda, directed against Henry of Hohenberg, the Prince-Abbot