List of monarchs in Cyrodiil by length of reign

The following is a list, ordered by length of reign, of the monarchs of the Cyrodilic Empires. Emperor Tiber Septim became the longest-reigning Emperor of Cyrodiil after ruling for 81 years on the throne.
==Longest-reigning Cyrodilic monarchs==
These are the ten longest-reigning monarchs in the Empires of Cyrodiil for whom there is reliable recorded evidence.
Rank	Image	Monarch 	Age at accession	Reign 	Reign	Duration	Duration
Rank	Image	Monarch 	Age at accession	From 	To 	Days 	Years
1 	 	Tiber Septim, Emperor of the Third Empire 	26 	2E 854	3E 38	? 	81
2 	 	Marcella Varian, Empress of the Fourth Empire	26 	4E 199	5E 68	? 	70