Darth Sidious also known as Chancellor Palpatine was probably born around 82 years before the Battle of Yavin, if the timeline for the beginning of his political career is correct, but most information about his actual origins have been lost. His first death at the hands of Darth Vader happened about 4 years after the Battle of Yavin, so at that time he would have been around 86 years old. However, he managed to cheat death for some time by transferring his spirit into a series of clones through which he returned to rebuild the Empire. Eventually a clone with his spirit was killed such that he could only transfer into one of the victims he tried to kill and was near death. His final death occurred about 7 years after his first.