Imperial family
Japan, a constitutional monarchy under the Imperial House of Japan, has claim to being the world’s oldest hereditary monarchy. Akihito, the current emperor of Japan, is traditionally considered the 125th direct descendant of Jimmu, the first emperor of Japan, who reigned 2,600 years ago. (https://econ.st/2s7JMJh, http://bit.ly/2IIqyAZ)