conquistador
Concise Oxford English Dictionary © 2008 Oxford University Press:
conquistador /kɒnˈkwɪstədɔː, -ˈkɪst-/
▶noun (pl. conquistadores /-ˈdɔːreɪz/ or conquistadors) any of the Spanish conquerors of Mexico or Peru in the 16th century.
– origin C19: from Sp.
'conquistador' also found in these Oxford entries:

