Don Jean de Castro

Print from Joseph-Francois Lafitau's 'Histoire des decouvertes et conquetes des Portugais dans le monde' (volume 2, page 427) showing Don Juan de Castro (1500-48) in a roundel holding a palm.

Juan de Castro was a Portuguese naval officer and fourth viceroy of the Portuguese Indies. He overthrew Mahmud, king of Gujarat, in 1546 and subsequently took control of the town of Malacca. Below is map of the town of Malacca, located in the southern region of the Malay Peninsula

De Castro wrote seminal pilot books on navigation (Roteiros) and also made pioneer experimental investigations of the variation of the magnetic compass.

Object Details

ID: PAD0006
Type: Print
Display location: Not on display
Places: Melaka
Date made: October 1547
People: Castro, Joao de
Credit: National Maritime Museum, Greenwich, London
Measurements: Mount: 197 mm x 148 mm