Monarch - Succession

Succession

Hereditary succession within one family has been most common. The usual hereditary succession is based on some cognatic principles and on seniority, though sometimes merit has played a part. Thus, the most common hereditary system in feudal Europe was based on cognatic primogeniture where a lord was succeeded by his eldest son or, if he had no son, by either his brother, his daughters or sons of daughters. The system of tanistry was semi-elective and gave weight also to merits and capability.

The Quasi-Salic succession provided firstly for male members of the family to succeed, and secondarily males descended from female lines. In most feudal fiefs, females (such as daughters and sisters) were allowed to succeed, should the male line fail, but usually the husband of the heiress became the real lord and most often also received the title, jure uxoris. Great Britain and Spain today continue this model of succession law, in the form of cognatic primogeniture. In more complex medieval cases, the sometimes conflicting principles of proximity and primogeniture battled, and outcomes were often idiosyncratic.

As the average life span among the nobility increased (thanks to lords limiting their personal participation in dangerous battles, and generally improved sustenance and living conditions among the wealthy), an eldest son was more likely to reach majority age before the death of his father, and primogeniture became increasingly favoured over proximity, tanistry, seniority and election.

Later, when lands were strictly divided among noble families and tended to remain fixed, agnatic primogeniture (practically the same as Salic Law) became more usual: the succession would go to the eldest son of the monarch, or, if the monarch had no sons, the throne would pass to the nearest male relative through the male line, to the total exclusion of females.

In some countries however, inheritance through the female line was never wholly abandoned, so that if the monarch had no sons, the throne would pass to the eldest daughter and to her posterity. (This, cognatic primogeniture, was the rule that let Elizabeth II become Queen.)

In 1980, Sweden became the first monarchy to declare equal primogeniture or full cognatic primogeniture, meaning that the eldest child of the monarch, whether female or male, ascends to the throne. Other kingdoms (Netherlands in 1983, Norway in 1990, Belgium in 1991 and Denmark in 2009) have since followed suit.

In some monarchies, such as Saudi Arabia, succession to the throne usually first passes to the monarch's next eldest brother, and only after that to the monarch's children (agnatic seniority). In some other monarchies (e.g. Jordan), the monarch chooses who will be his successor, who need not necessarily be his eldest son.

Whatever the rules of succession, there have been many cases of a monarch being overthrown and replaced by a usurper who would often install his own family as the ruling monarchy.