A country that is without a monarch can be called a democracy. If a country has a monarch it would be referred to as a monarchy.
afghanistan
regal official running a country in abscence of a monarch
A king is a monarch. A country ruled by a king and/or queen is called a monarchy.
I understand it is monarch
It is Queen Elizabeth II
British monarch who thought the colonies existed for the benefit of the mother country
A monarch and the Christian Church.
Democracy
France.
The phrase "queen of monarch" is not grammatically correct. However, if you are referring to a queen who rules as the monarch of a country, it means that she holds the highest position of power in that country and is the head of state.
It rather depends which country you're referring to, but the British monarch in 1806 was King George the Third.