The history of Venice is the history of adventurous merchants and wealthy nobles who travelled ever further on their commercial routes in search of exotic products still to be discovered.
Venice was the  centre where all the new commerce was arranged with the great lands which extended from Romania to Syria, the kingdoms overseas from which extremely rare goods arrived which were precious and in great demand. Among these was the famous Russian caviar. A privilege for the few which was soon to become a luxury desired by the greatest courts and by the most noble families who absolutely had to try and taste the rare excellence of the Tsar’s favourite dish.
Sumptuous Baroque feasts, grand masked balls, sparkling dresses, glittering salons and entire palaces lit up by a thousand lights: the great Venetian nobility were famed for their great festivities which attracted guests from all parts of the world. This was the society where Caviar became the essential sublime pleasure that everyone wanted to taste.
Among rich Venetian merchants the precious caviar became so widely used that they began to  obtain their supplies from nearby Ferrara where already in the 1500s  there were caviar "factories" which prepared the eggs obtained from sturgeon fished from the River Po using an extraordinary recipe (see the treatise "Banquets" by Cristoforo da Messisbugo - Ferrara 1549 ).