Tanabe, who was born Sept. 18, 1895, had eight children (five sons and three daughters). The former city land surveyor also had 25 grandchildren, 53 great-grandchildren, and six great-great-grandchildren, according to a statement from the Miyakonojo city. He was certified by the Guinness Book of World Records as the world's oldest man when he was 111 years old. Tomoji Tanabe- the world's oldest man died in his sleep at his home in southern Japan on Friday. He was 113 years old. He died peacefully. His family members were with him. Tanabe died of heart failure. Tanabe lived with his fifth…