Monarchy of Oslanburg

The Monarchy of Oslanburg, colloquially known as the Oslanburgan Monarchy, is a constitutional institution and a historic office of the Arch-Kingdom of Oslanburg. The Arch-Kingdom includes not only Oslanburg, but the constituent states of Bisica and Isle Vikaris. The monarchy is currently represented by the Arch-King Aerin III, who ascended the throne on the abdication of his mother, Arch-Queen Johanna IV, on 23 Alvanm 1565.

The Monarchy is constitutional and as such, the role of the monarch is defined and limited by the Constitution of Oslanburg, which refers to the position as the Arch-King. The monarch and his or her immediate family undertake various official, ceremonial, diplomatic and representational duties. The ultimate executive authority over the government of Oslanburg is still by and through the monarch's royal reserve powers; in practice these powers are only used according to laws enacted in Parliament or within the constraints of convention. The monarch is, in practice, limited to non-partisan functions such as bestowing honours and appointing the Prime Minister, though this practice is mostly unobserved due to the monarch's role in foreign affairs.

Originally an elective monarchy, it became hereditary only in the 14th century during the reign of Otto I . A decisive transition to a constitutional monarchy occurred in 1397 with the writing of the first Constitution.