Nielsen Hayden genealogy
Descendants of Boleslaw I Chrobry, King of Poland
Abt 967 - 1025 (~ 58 years)Father: Mieszko I, Duke of the Polans (Abt 935 - 25 May 992)
Mother: Dobrawa of Bohemia ( - 977)
Boleslaw I Chrobry, King of Poland (Abt 967 - 17 Jun 1025)
Emnilda of Lusatia (Between 970 and 975 - Between 1013 and 1017)
   └─ Mieszko II Lambert, King Of Poland ( - May 1034)
    Richeza of Lotharingia (Abt 998 - 21 Mar 1063 Saalfield, Thuringia, Germany)(m. 1013)
       ├─ Adelaide of Poland (22 Sep 1013 - Aft 1051)
       │ Béla I, King of Hungary (Between 1015 and 1020 - 11 Sep 1063 Kinizsa Creek, Hungary)
       │ (m. Between 1039 and 1043)
       │ (m. Between 1039 and 1043)
       │    │ + Synadene ( - Aft 1077)
       │    │ + Sophie of Looz ( - Abt 1065)(m. Abt 1062)
       │    ├─ St. Lászlo I, King of Hungary (27 Jun 1040 - 29 Jul 1095) =>
       │    │ + Adela von Rheinfelden ( - 1079)(m. 1077)
       │     + Ulrich von Krain (Abt 1030 - 6 Mar 1070)(m. Between 1062 and 1063)
       │     + Magnus of Saxony (Abt 1045 - 23 Aug 1106 bur.Artlenburg, Lower Saxony)(m. Between 1070 and 1071)
       ├─ Casimir I, Duke Of Poland (25 Jul 1016 Krakow, Malowpolskie, Poland -
       │ 28 Nov 1058 Poznan, Wielkopolskie, Poland)
       │ 28 Nov 1058 Poznan, Wielkopolskie, Poland)
       │ Maria Dobronega (Aft 1011 - 1087)(m. 1038)
       │    ├─ Wladyslaw I Herman, Duke of Poland (Abt 1043 - 4 Jun 1102 Plock, Mazowieckie, Poland) =>
       │    │ + Judith Premyslid, Princess of Bohemia ( - Between 1093 and 1095)(m. Abt 1080)
       │     + Vratislaus II, King of Bohemia (Abt 1035 - 14 Jan 1092)(m. 1063)
       └─ Gertrude-Olisava of Poland (Abt 1020 Krakow, Malowpolskie, Poland - 4 Jan 1107)
        Iziaslav I, Grand Prince of Kiev (1025 - 3 Oct 1078)(m. Abt 1043)
           ├─ Jaropolk Pjotr Isjaslawitsch (Bef 1050 - 22 Nov 1087) =>
           │ + Kunigunde ( - 8 Jun 1140)(m. Abt 1073)
           └─ Sviatopolk II, Grand Prince of Kiev (1050 - 16 Apr 1113) =>
            +