Christofforo Suriano was the first Venetian envoy to the Dutch Republic. His arrival in The Hague marks the beginning of official Dutch-Venetian diplomatic relations. This digital edition presents all 725 letters sent by Suriano to the Venetian Senate between 1616 and 1623, totaling approximately 7,000 pages. His correspondence is of great importance for Dutch, Venetian, and European history in the first phase of the Thirty Years’ War.