Jesús Redondo Bermejo was born in Cañaveral, Cáceres Province, Extremadura, Spain, on 2 June 1915. He started working as an accountant for the town hall at the age of 19 and continued in that position until his retirement in 1976. At some point, he got married and had at least three children.

At the age of 108, he still had the ability to read and watch TV perfectly without glasses. During that time, he lived between his hometown and the assisted living facility in Cáceres. At the time, he had 7 grandchildren and 4 great-grandchildren.