Nielsen Hayden genealogy
Descendants of Konrad II von Znaim
Father: Luitpold ( - 15 Mar 1112)
Mother: Ida von der Ostmark
Konrad II von Znaim
Marija of Serbia ( - Aft 1190)(m. 1134)
   └─ Helene von Znaim ( - Between 1202 and 1206)
    Casimir II (1138 - 5 May 1194)(m. Between 1185 and 1186)
       └─ Konrad I of Masovia (Between 1187 and 1188 - 31 Aug 1247)
        Agafia Svjatoslava of Novgorod ( - Aft 31 Aug 1247)(m. 1207)
           │ + Euphrosyne of Oppeln (Between 1228 and 1230 - 4 Nov 1292)(m. 1257)
            + Pereslajawa Danilovna of Halicz ( - 12 Apr 1283)(m. Abt 1248)