Editing Regnal number (section)

==History==
Almost all West European monarchs and popes after [[Middle Ages|medieval]] times have used ordinals. Ordinals are also retrospectively applied to earlier monarchs in most works of reference, at least as far as they are not easy to distinguish from each other by any other systematical means. In several cases, various sorts of "semi-regnal" members of dynasties are also numeraled, to facilitate their individuality in works of reference – in cases such as co-regents, crown princes, succession-conveying [[wikt:consort|consorts]], prime ministers and deputy monarchs. In the first centuries after the Middle Ages, the use was sometimes sporadic, but became established by the 18th century. In the past couple of centuries, European monarchs without an official ordinal have been rarities.

As a rule of thumb, medieval European monarchs did not use ordinals at their own time, and those who used were rarities and even their use was sporadic. Ordinals for monarchs before the 13th century are [[anachronism]]s, as are also ordinals for almost all later medieval monarchs. Still, they are often used, because they are a practical way of distinguishing between different historical monarchs who had the same name.

Popes were apparently the first to assume official ordinals for their reigns, although this occurred only in the last centuries of the Middle Ages. It is clear, from renumberings of Popes John XV–XIX and Popes Stephen II–IX, that as of the 11th century the popes did not yet use established ordinals. The official, self-confirmed numbering of John XXI means that at latest from the 13th century the popes did take official ordinals in their accession.

[[Emperor Frederick II]], King [[Charles II of Naples]] and King [[Premislas II of Poland]] evidently used ordinals sometimes during their reign, whereas most of their contemporary monarchs did not. In the 14th century, [[Emperor Charles IV]] sometimes used that ordinal. Presumably, use of the ordinal of king [[Frederick III of Sicily]] also is contemporaneous. The royal chroniclers of the [[Abbey of Saint-Denis]] were using ordinals to refer to the [[House of Capet|French kings]] as early as the thirteenth century with the practise entering common usage among royalty and the nobility by the late fourteenth century. The [[United Kingdom|British]] tradition of consistently and prevalently numbering monarchs dates back to [[Henry VIII]] and [[Mary I]]; however, sporadic use occurred at least as early as the reign of [[Edward III]].

The long history of the papacy has led to difficulties in some cases.  For example, [[Pope-elect Stephen|Stephen]] was only pope for three days before dying of [[apoplexy]], and was never consecrated. Because not all list-makers count him as having been pope (as ''Stephen II''), there has been some confusion in regard to later popes who chose the name Stephen. Later Stephens are sometimes numbered with parentheses, e.g., his immediate successor (in name) is denoted either Stephen (II) III or Stephen III (II).  The church did consider Stephen II a pope until 1960, when he was removed from the list of popes in 1961. The history of the [[Pope John numbering|numbering of popes taking the regnal name "John"]] is even more convoluted, owing to the long history of popes taking the name (a common name, chosen frequently to honour the [[John the Apostle|Apostle]]), bad record-keeping, and political confusion; among other results, the regnal name "John XX" is completely skipped under all reckonings.