Olelkovich

The Olelkovich (Olelkowicze) family was a 15th–16th-century noble family from the Grand Duchy of Lithuania. Their main possession was the Duchy of Slutsk–Kapyl; therefore, they are sometimes known as Slutskys. They hailed from the Lithuanian Gediminids (male line) and Russian Rurikids (female line). According to a 1528 military census, the fam...
Found on http://en.wikipedia.org/wiki/Olelkovich
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