ROYALISM
royalism
(noun) adherence or attachment to a monarchy or to the principle of monarchal government
Source: WordNet® 3.1
Etymology
Noun
royalism (countable and uncountable, plural royalisms)
Impassioned allegiance to or advocacy of the establishment, maintenance, and/or interests of a particular king, royal house, or kingly dynasty; sometimes extended to the same of a non-royal (i.e, grand ducal, imperial, or other) family or sovereign; often contrasted with monarchism.
Source: Wiktionary
Roy"al*ism, n. Etym: [Cf. F. royalisme.]
Definition: the principles or conduct of royalists.
Source: Webster’s Unabridged Dictionary 1913 Edition