Issue of Edward III of England – 3 February 1399), 1st Duke of Lancaster, fourth son. From the marriage of John of Gaunt and Blanche of Lancaster, daughter and heiress of the Duke of Lancaster, descended legitimate male heirs, the Lancasters (King Henry IV (1399-1413), who as Henry of Bolingbroke in 1399 deposed his first cousin King Richard II (1377-1399), and was followed by his son King Henry V(1413-1422) and the latter's son King Henry VI (1422-1471). This line ended in 1471 when King Henry VI's son Edward of Westminster, Prince of Wales was killed at the Battle of Tewkesbury and when he himself was deposed
Pêro Escobar Pêro Escobar Pedro Escobar, also known as Pêro Escobar, was a 15th-century Portuguese navigator who discovered São Tomé (December 21, 1471), Annobon (January 1, 1472), Príncipe (January 17, 1472) islands, together with João de Santarém c. 1470. He is then recorded sailing with Diogo Cão on his first voyage in 1482, and as the pilot of the famous Bérrio caravel on Vasco da Gama’s first expedition in 1497 to sail directly from Europe to India. He was also on Pedro Álvares Cabral’s discovery of Brazil in 1500. In 1471, working in the service of Lisbon merchant Fernão Gomes, who had