D. João de Castro (27 February 1500 – 6 June 1548) was a Portuguese nobleman, scientist, writer and colonial administrator, being the fourth Portuguese Viceroy of India from 1545 to 1548. He was called Strong Castro (Portuguese: Castro Forte) by the poet Luís de Camões. De Castro was the second son of Álvaro de Castro, the civil governor of Lisbon. His wife was Leonor Coutinho.
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👉 João de Castro in the context of Galleon
Galleons were large, multi-decked sailing ships developed in Spain and Portugal. They were first used as armed cargo carriers by Europeans from the 16th to 18th centuries during the Age of Sail, and they were the principal vessels drafted for use as warships until the Anglo-Dutch Wars of the mid-17th century. Galleons generally carried three or more masts with a lateen fore-and-aft rig on the rear masts, were carvel built with a prominent squared off raised stern, and used square-rigged sail plans on their fore-mast and main-masts.
Such ships played a major role in commerce in the sixteenth and seventeenth centuries and were often drafted into use as auxiliary naval war vessels—indeed, they were the mainstay of contending fleets through most of the 150 years of the Age of Exploration—before the Anglo-Dutch wars made purpose-built warships dominant at sea during the remainder of the Age of Sail.