Royalist

Noun

 * 1) A monarchist (supporter of monarchy) or supporter of a particular royal regime.
 * 2) Can carry the connotation of a legitimist, a supporter of a particular royal line, especially one in danger of being dispossessed of a throne or actually dispossessed of such, and claiming to have the better claim to the throne on the basis of line of descent.
 * 3) Especially:
 * 4) * a Cavalier, a supporter of King Charles I of England during the English Civil War
 * 5) * a supporter of the House of Bourbon, in France since the 18th century and especially during the French Revolution
 * 6) * a supporter of Ferdinand VII of Spain in Spanish South America during the South American Wars of Independence of the 1810s and 1820s.

Thesaurus
Bircher, Bourbon, Tory, conservatist, conservative, diehard, extreme right-winger, hard hat, imperialist, monarchist, radical right, reactionarist, reactionary, reactionist, right, right wing, right-winger, rightist, social Darwinist, standpat, standpatter, ultraconservative

Etymology
From royal + -ist.

Anagrams

 * solitary