monarchal

[ muh-nahr-kuh l ]

/ məˈnɑr kəl /

pertaining to, characteristic of, or befitting a monarch: monarchal pomp.

having the status of a monarch.

Also mo·nar·chi·al

[muh-nahr-kee-uh l] /məˈnɑr ki əl/.

Origin of monarchal

First recorded in 1580–90; monarch + -al¹

mo·nar·chal·ly, adverb an·ti·mo·nar·chal, adjective an·ti·mo·nar·chal·ly, adverb an·ti·mo·nar·chi·al, adjective

non·mo·nar·chal, adjective non·mo·nar·chal·ly, adverb non·mo·nar·chi·al, adjective pre·mo·nar·chal, adjective pre·mo·nar·chi·al, adjective

monarchal monarchical

He killed his own son and heir by whacking him over the head with the monarchal staff in a tsar-ish fit of temper.

Russian History Is on Our Side: Putin Will Surely Screw Himself |P. J. O’Rourke |May 11, 2014 |DAILY BEAST
That some were attached to the monarchal, while others thought the republican more eligible.

Abridgment of the Debates of Congress, from 1789 to 1856, Vol. II (of 16) |Thomas Hart Benton