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If you're asking whether it's original, then don't use it. Make something up like noblest Vaspahr, or something of the sort. The titles that you are using aren't bad either, though. The titles that...
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#3: Attribution notice added
Source: https://writers.stackexchange.com/a/39853 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/
#2: Initial revision
If you're asking whether it's original, then don't use it. Make something up like noblest Vaspahr, or something of the sort. The titles that you are using aren't bad either, though. The titles that you are, what I think, are reserved for nobility. I don't think it's necessary for you to use these titles, but if you do then don't stress whether it sounds like it should be for a certain court or office. But, again, it's your story.