D. Diogo Rodrigues, D. Diogo Roiz ( 1490-1496; Lagos, Portugal – 21 April 1577; Colvá, Gôa) was a Portuguese explorer of the Indian Ocean who sailed as an ordinary helmsman under the command of D.Pedro Mascarenhas around Goa. They sailed from the Cape of Good Hope eastward into little-known waters of the newly discovered route to Gôa. It was after him that the island of Rodrigues was\is named between 4 and 9 February 1528 after discovering it during his only return journey from Gôa via Cochin (left on 15 January 1528) to Portugal, following which he rose to the rank of a knight(cavaleiro). He then returned to Gôa and made a mark in the history of the Portuguese empire in the subcontinent around the mid 16th century.