 On 8 February 1740 Katherine was raised to the nobility by Emperor Karl VI and given the name von Seyferhold.Only five months later (16 July 1740) Ludwig Ernst died and his cousin at Bibra, Johann Philip seized Brennhausen by force and dispossessed the widow and her two children.She appealed to the Imperial Court (Reichshofrat) and twelve years later on 28 April 1752 she won an order from the court that Johann Philip must return the property to her sons and pay damages.