John IV of Sayn-Wittgenstein (born 1350) (1350–1422) Parents Adelheid of Wittgenstein Salentin II of Sayn Children Irmgard von Sayn Gottfried von Sayn Elisabeth zu Sayn-Wittgenstein Georg I von Sayn-Wittgenstein Siblings Jutta, Gräfin zu Sayn-Vallendar Partners Katharina von Solms