In order to protect their interests and territory the abbots of Fulda then used the noble lords of Lützelbach as bailiffs, already holders of allods in the area.

in 1239, one of the hereditary daughters of the imperial bailiff Gerlach II von Büdingen, the family increased its power, properties and interests also to the Wetterau, where Konrad II (builder of Frankenstein Castle), Arrois, Gerlach and Eberhard III successively held the office of imperial bailiff of the Wetterau.

Under Gerlach (1245-1306) and his son Eberhard III, the family reached its zenith with the greatest territorial expansion, power and possessions.

The highlight of this expansion of power was the acquisition of the Frankfurt castle Saalhof in 1282 as an imperial fief (pledged loan) from King Rudolf I. Louis IV, Holy Roman Emperor confirmed to Eberhard III of Breuberg in 1317 the fiefdom of Gründau and the Saalhof with the associated fishing and shipping rights.

Divided and split shield, coated on the right with a golden and blue-crowned lion, left roughened in silver and blue Ludewig Reis de Lucelenbach