Rudolph IV, Count of Wertheim German count (1250–1355) Parents Rudolph II, Count of Wertheim Mechtild von Dürn Children Kunigunde of Wertheim, Countess of Hohenberg-Nagold Eberhard I, Count of Wertheim Sophia of Wertheim, Countess of Isenburg-Budingen Siblings Willibirg of Wertheim Rudolph III, Count of Wertheim Kunigunde of Wertheim Partners Elisabeth of Breuberg