A king is one kind of ruler but a ruler can be other types also. They can be a queen, a prince, a baron or regent; and some are called a premier, a chairman, or some have been called 'president for life'.
King Arthur
King William I Was a Ruler Of great Britain in The Medieval Times. King William I Was a Ruler Of great Britain in The Medieval Times.
Monarchy.
a ruler and a king.
The emperor
The ruler is the king of the class because another word for king is ruler.
the ruler of England
A king
King Arthur
a king
no they have a ruler, not a king
King Nebuchadnezzar was the ruler of the Neo-Babylonian Empire in ancient Mesopotamia.
Zeus is the king and ruler of the Greek gods.
King William I Was a Ruler Of great Britain in The Medieval Times. King William I Was a Ruler Of great Britain in The Medieval Times.
After the king and castle switch, the ruler of the kingdom would be the new king who now resides in the castle.
the king was
it is a king