[2][3][4] Ulrich, who was expected to inherit the County from his father, Eberhard II, was killed at the Battle of Döffingen [de] during Württemberg's struggle with the Swabian League of Cities.

[4] Eberhard's reign was noted by a peace-preserving policy of alliances with the neighboring principalities and imperial towns.

[5] On 13 November 1397, he concluded a marriage contract for his son Eberhard IV and Henriette, Countess of Montbéliard, granddaughter of Stephen of Montfaucon.

Her dowry, agreed upon at Milan on 1 July 1380, was 70,000 guilders, which included expensive garments, musical instruments, and books.

Their marriage produced one daughter, Elisabeth, who later married Count John IV of Werdenberg.