Gregor zu Sayn Wittgenstein- Berleburg prince (1873-1907) (1873–1907) Parents Ferdinand Wilhelm Emil Prinz zu Sayn-Wittgenstein-Berleburg Praskovya Dadiani Children Nina von Sayn-Wittgenstein-Berleburg Siblings Alexander zu Sayn-Wittgenstein-Berleburg Partners Elisaveta von Sayn-Wittgenstein-Berleburg