3 adjectives to describe propagators

BAZARD, SAINT-AMAND, a French socialist, founder of the Charbonnerie Française; a zealous but unsuccessful propagator of St. Simonianism, in association with ENFANTIN (q. v.), from whom he at last separated (1791-1832).

He wrote the Brut under the patronage of Henry II, and, if we may trust Layamon's statement, he dedicated it to Queen Eleanor, who was the ardent propagator in England of the courtly ideals of southern France.

The first was directed against the foreign propagators of revolution.

3 adjectives to describe  propagators