Reigns

130-year period during the 16th and 17th centuries when the women (mothers or wives of the Sultan) of the Imperial Harem of the Ottoman Empire had great political influence over the state

article on the reign of Cleopatra VII

period of the contemporary history of Spain

A reign is the period of a person's or dynasty's occupation of the office of monarch of a nation (e.g., Saudi Arabia, Belgium, Andorra), of a people (e.g., the Franks, the Zulus) or of a spiritual community (e.g., Catholicism, Tibetan Buddhism, Nizari Ismailism). In most hereditary monarchies and some elective monarchies (e.g., Holy Roman Empire) there have been no limits on the duration of a sovereign's reign or incumbency, nor is there a term of office. Thus, a reign usually lasts until the monarch dies, unless the monarchy itself is abolished or the monarch abdicates or is deposed.

from 1814 to 1833