According to this rather odd Korean article, 80 year old former housemaid of Abe Shintaro, Abe Shinzo's father, claims his former employer confessed to her before dying that he descends from a Chosun family line (Chosun precedes Republic of Korea) which originated somewhere in Manchuria. He also tolder he that his family name Abe was the same one used by an 11th century warrior.

This doesn't change my opinion of Abe Shinzo though because it's his thoughts that matters to me, not what flows in his veins.