House of Palatinate-Simmern
The Palatinate line of the House of Wittelsbach was divided into four lines after the death of Rupert III in 1410, including the line of Palatinate-Simmern with its capital in Simmern. This line became extinct in 1685 with the death of Charles II. The Palatinate-Neuburg line inherited the estate.
The founder of the line Simmern, Stephen, Count Palatine of Simmern-Zweibrücken is also the founder of the cadet branch House of Palatinate-Zweibrücken and its cadet branches. The rights over the County of Veldenz and a share of the County of Sponheim, transmitted by Stephen's wife Anna of Veldenz, were held by these lineages.