The term 'Queen of Kings' can be solved by the crossword solution SHEBA, which is a five letter word. Sheba was a kingdom in ancient times located in the Horn of Africa, and it was ruled by a powerful queen known as the Queen of Sheba. The Queen of Sheba is also mentioned in the Bible and is believed to have visited King Solomon in Jerusalem. She is often referred to as the Queen of Kings due to her power and influence.