The leading question in this paper is how to explain the frequent combination of the symbol of Venice, the Lion of Saint Mark, and the text Pax Tibi Marce Evangelista Meus, which combination forms a vital part of the so-called myth of Venice. This paper defends the opinion that the text Pax Tibi Marce Evangelista Meus has been connected with insufficient arguments with Saint Mark’s legendary dream on the lagoon and instead builds up an argument in favour of the proposition that the combination of symbol and motto, of martial animal with irenic message, was developed at the very end of the fourteenth century, when as a reaction to the war on Chioggia Venetian expansion started on the terraferma. The combination of the Lion of Saint Mark, the symbol of Venice, with the motto of the city, Pax Tibi Marce Evangelista Meus, accompanied this move to the terraferma which was presented by the Venetians as an act to secure peace in all of Italy.