The name 'NAKAMURA' was given by his master, Jakuemon and the reason he took 'Sojuro' was because he thought that if Gennosuke SAWAMURA succeeded Sojuro SAWAMURA, his first name was also the same Gennosuke, so he thought he could succeed with Sojuro too.
「中村」は師匠の雀右衛門からいただき、「宗十郎」の方は「澤村源之助が澤村宗十郎を襲名するのなら、自分も源之助だから宗十郎を襲名すればいいだろう」とこれを頂戴した。