What does Isoroku Yamamoto mean?

Isoroku Yamamoto is still her husband's sixth son, General Yamamoto. On the day he was born, his father was in his fifties, so he was named Isoroku Yamamoto. He is still the commander of imperial japanese navy's joint fleet. His rank is General 1943. When General Yamamoto went to inspect the army again, he was shot down by American warplanes, and after his death, he was made a marshal by Emperor Hirohito.