Prince Kazimierz (The Restorer) Karol of Poland I & Princess Dobronegra Mariya Vladimirovna of Kiev 
The Restorer and Dobronegra were married in 1039.1 They had four sons and a daughter, named The Bold, Wladislaw, Mieszko, Otton and Swietoslawa.
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Personal Details
Prince Kazimierz (The Restorer) Karol of Poland I
Kazimierz, known as The Restorer, was born on July 25th, 1016 in Krakbow, Krakbow, Poland.1 He died at the age of 42 on November 28th, 1058.1
Princess Dobronegra Mariya Vladimirovna of Kiev
Dobronegra was born in 1011 in Kiev, Ukraine.1 She died at the age of 76 in 1087.1
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Children
King Boleslaw (The Bold) of Poland II
Boleslaw, known as The Bold, was born in 1041 in Krakbow, Krakbow, Poland.2
Prince Wladislaw Herman of Poland I
Wladislaw was born in 1043 in Krakbow, Krakbow, Poland.2 He died at the age of 59 on June 4th, 1102.3
Princess Swietoslawa of Poland
Swietoslawa was born in 1044 in Krakbow, Krakbow, Poland.4 She died at the age of 82 on September 1st, 1126.4
1 http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=PED&db=bevangenealogy&id=I8428&style=TABLE
2 http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=GET&db=bevangenealogy&id=I8386
3 http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=PED&db=bevangenealogy&id=I8348&style=TABLE
4 http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=PED&db=bevangenealogy&id=I33899&style=TABLE
2 http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=GET&db=bevangenealogy&id=I8386
3 http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=PED&db=bevangenealogy&id=I8348&style=TABLE
4 http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=PED&db=bevangenealogy&id=I33899&style=TABLE