Answer:
They are all Spanish explorers and conquistadors
Step-by-step explanation:
Luis de Moscoso Alvarado became a Spanish explorer and conquistador, following the death of Hernando De Soto to continue his expedition. He died in Peru in 1551.
Francisco Vázquez de Coronado y Luján was also a Spanish explorer and conquistador who led an expedition from present-day Mexico to present-day Kansas. He died in Mexico City in 1554
Juan de Oñate y Salazar was a Spanish explorer and conquistador from New Spain, who led expeditions to the places like Great Plains and Lower Colorado River Valley. He died in Spain in 1626.