A monarchy is a system of government headed by a monarch, the same way a sovereignty is headed by a sovereign.
in favour of the monarchy
Monarchy is a generic term for a (usually) hereditary ruler such as a king, queen, emperor, caliph, sultan etc.
Autocracy
Constitutional Monarchy
The United Kingdom has a constitutional monarchy, which differs from an absolute monarchy in that the head of state acts within the perimeters of an implied constitution.
Another word for a monarchy is "kingdom." A monarchy is a form of government where a single person, often a king or queen, holds supreme authority, whereas a kingdom refers to the territory or realm ruled by that monarch. Other terms that can be associated with monarchy include "royalty" and "dynasty."
One could argue that a clear line of succession is an advantage of a monarchy. From the perspective of the monarchy, absolute power would be another advantage.
monarchy
An Absolute Monarchy
monarchy
The term usually used by historians is The Dual Monarchy.
A constitutional monarchy, also known as a limited monarchy or parliamentary monarchy. A constitutional/limited/parliamentary monarchy has a legislature and a constitution. See the Related Link below for the Wikipedia entry.