Michałowicz is a fairly common surname in Poland used by some 1,700 people. It is a name of patronymic origin whose English equivalent would be Michaelson. In one spelling or another the -icz/-wicz patronymic ending is common to the Polish, Russian and Ruthenian (Belarusian, Ukrainian) languages and other Slavonic tongues. Mikhailovich is the Latin transcription of the Russian version and Mykhailovych is Ruthenian. Fewer than 3 dozen people in Poland sign themselves Michajłowicz, the Polish transliteration of the Russian
You may be itnerested to know there were nobles amongst Poland's Michałowiczes with a coat of arms to prove it.
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