Answer:
Vasco da Gama
Step-by-step explanation:
The noble of Venice is referring to the discovery voyage Vasco da Gama made in the 1490´s. He discovered the best way to use the Atlantic winds to reach Cape of Good Hope; from there he went on to finally make it to the Indian subcontinent. The financial backing for the Portugese ventures came from Genoa, the rival of Venice. Genoa saw it´s silk trade severely damaged by the fall of Constantinopel in 1453, whereas Venice continued it´s monopoly on the spices trade. But when the Portuguese reached India in 1498, the good times where over for Venice.
The Portuguese were skilled sailors and they were furthermore helped by the Scientific Revolution that took place during the Renaissance. The invention of the Compass and the Astrolabe enabled them to find their way at sea. So from 1500 on the glory days of Mediterranean trade ended and Atlantic trade emerged.