distinguish monarchs. An ordinal is the number placed after a monarch's regnal name to differentiate between a number of kings, queens or princes reigning...

original name when they accede to the monarchy. The regnal name is usually followed by a regnal number, written as a Roman numeral, to differentiate that...

The regnal years of English and British monarchs are the official regnal years of the monarchs of the Kingdom of England from 1066, the Kingdom of Great...

such, he is typically referred to as Constantine XI, with 'XI' being a regnal number, used in monarchies since the Middle Ages to differentiate among rulers...

A regnal year is a year of the reign of a sovereign, from the Latin regnum meaning kingdom, rule. Regnal years considered the date as an ordinal, not a...

Regnal lists of Ethiopia are recorded lists of monarchs who are claimed by tradition to have ruled Ethiopia. These lists are often recorded on manuscripts...

earspool, a separate nosepiece, and a speech scroll. The Aztecs did not use regnal numbers; they were given retroactively by historians to more easily distinguish...

Elizabeth II of the United Kingdom, Pope Benedict XVI. These are referred to as regnal numbers and are usually read as ordinals; e.g. II is pronounced "the second"...

cardinal, respectively. Furthermore, he was the first pope to add the regnal number "I", designating himself "the First". His two immediate successors,...

Roman Curia, the Annuario Pontificio no longer identifies popes by regnal number, stating that it is impossible to decide which pope represented the...