When the king died without any sons, the Queen ruled a country that was now a matriarchy.
King is a man who ruled country,town etc.
King James also ruled Scotland.
Albania
Spain
King Philip ruled Spain
Now they are not similar but previously both were king ruled country
He ruled France
A king is a monarch. A country ruled by a king and/or queen is called a monarchy.
Aristocracy
nepal
An Aristocracy