Who is the only king who was said he had no father or mother?

The only king who is said to have had no father or mother is King Melchizedek, a figure from the Hebrew Bible. He is depicted as the king of Salem and a priest of God Most High, and he appears in the Book of Genesis. In biblical tradition, Melchizedek's origins are mysterious, and the Book of Hebrews in the New Testament emphasizes his unique status by stating that he is "without father or mother, without genealogy." This has led to various interpretations regarding his significance in religious texts.