Original sentence: The Polish school stresses his identity as member of the polonized Lithuanian nobility (szlachta)
Edited sentence: Back in 1969 under the then communist regime Tadeusz Nowak stressed him as a Polonized Lithuanian nobleman(i.The Polish school, traditionally indifferent to strictly defining the ethnicity of each individual within the realm of the Polish-Lithuanian Commonwealth, describes his identity simply as member of the szlachta (i.a nobleman born in a region of the Duchy of Lithuania of the Commonwealth).the nobility within the Commonwealth)