Nielsen Hayden genealogy
Family: St. Michael of Chernigov, Grand Prince of Kiev / Marija Romanowna of Halicz (F14993)
Vsevolod III, Grand Prince of Kiev ( -1214) 
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(Unknown) of Poland (1164-1194)
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| Roman, Grand Prince of Kiev (1161-1205)
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| Predslawa Rjurikowna ( -1203)
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| St. Michael of Chernigov, Grand Prince of Kiev (1185-1246)
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| Marija Romanowna of Halicz ( -1242)
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Rosztiszlo, King of Bulgaria; Grand Duke of Kiev (1212-1264)  |