monarch predecessor successor death_date birth_place death_place allegiance nationality office battles birth_date term_start image article_title term_end name
john iii of portugal martim afonso de sousa garcia de sá yes 6 june 1548 7 february 1500 lisbon , kingdom of portugal goa , portuguese india portuguese empire portuguese governor and viceroy of portuguese india ottoman-portuguese conflicts 27 february 1500 1545 joao de castro.jpg joão de castro
 1548 joão de castro
joão de castro

joão de castro -lrb- 7 february 1500 -- 6 june 1548 -rrb- was a portuguese nobleman and fourth viceroy of portuguese india .
he was called `` castro forte '' -lrb- `` stronghold '' or `` strong castle '' -rrb- by poet luís de camões .
castro was the son of Álvaro de castro , civil governor of lisbon .
his wife was leonor de coutinho .
