royalists; royalist faction
Refers to a political group or individuals supporting a monarchy, often in historical contexts such as the English Civil War or the French Revolution.
The Royalists fought against the Parliamentarians.
During the French Revolution, the royalists fled abroad.
議会派 specifically refers to the Parliamentarian faction in the English Civil War, a direct opponent of the Royalists.
Compound of 王 (king) + 党 (party, faction) + 派 (faction, group). The term is a straightforward Sino-Japanese construction for 'royalist faction'.