Wikipedia
Sayn-Wittgenstein-Hohenstein
Sayn-Wittgenstein-Hohenstein was a county between Hesse-Darmstadt and Westphalia. It was formed by the 1657 partition of Sayn-Wittgenstein-Wittgenstein and raised from a county to a principality of the Holy Roman Empire in 1801. It belonged from 1806 to 1815 to the Grand Duchy of Hesse and after 1816 to Prussia. The capital was Laasphe. The family line belongs to the house of Sayn-Wittgenstein-Berleburg.