He is supposed to have been either a priest's son or a converted Jew, and was highly educated, relative to the times he lived in, knowing as he did the Russian and Polish languages and being somewhat of an expert in liturgical matters.
He is supposed to have been either a priest's son. He is supposed to have been a converted Jew. He was highly educated. He lived in. As he did the Russian and Polish languages. This was what he was knowing. He was being somewhat of an expert in liturgical matters.