Yes, in a monarchy, a king can take a queen as his wife.
King Louis XVI and his wife Queen Maria Antoinette..
King Priam and his wife Queen Hecuba .
King Priam and his wife Queen Hecuba .
Juan Carlos I is the King: the Queen is his wife Sophia.
Gorgo, queen of Sparta, was King Leonidas' wife.
King Tut’s queen was his sister-wife Ankhesenamun.
Prasutagus's wife was the queen of the tribe iceni, Boudicca. They were the king and queen.
King Philip IV and his wife, Queen Mariana.
Queen Guinevere, King Arthur's wife in the Arthurian legend.
King tuts wife was the daughter of Queen Nefertiti
A King can only have one Queen at a time. The wife of a King is generally known as a Queen.
King Louis and his wife Queen Marie-Antoinette