[4][note 6] This led to a conflict with her paternal uncle Count John IV of Nassau-Siegen, who had succeeded his brother in all his possessions[1][5][6][7][8][9] and was granted the County of Diez as a fief by Archbishop James I [de] of Trier on 4 November 1451.

[10] The conflict was complicated further due to the fact that another part of the County of Diez belonged to Ottilie's father-in-law Philip the Elder of Katzenelnbogen.

Oswald was governor in the Alsace, the Sundgau and the Breisgau and councillor in Lorraine and the Electorate of Cologne.

[4][13] On 6 May 1482 Ottilie of Katzenelnbogen renounced her claims to the counties Katzenelbogen and Diez[4] and received financial compensation.

[11] In 1485 Ottilie's second husband, Oswald I of Tierstein, attempted to murder John V of Nassau-Siegen because of his dissatisfaction with the marriage grant and the settlement of the inheritance.