I'm looking for whether there is a specific term or a title for a King who also happens to be a Rabbi/Chief Rabbi. In other words, both the religious authority and the political authority.
Just as an example, for a different religion, the term might be something akin to a "Caliph" title (although that term has a more specialized and specific meaning). For Judaism, would it just be "King-Rabbi" or "Rabbi-King" or is there a special word?
Also for this question, language is not important, so if the term is in Hebrew, English, Yiddish, etc. its all fine.