Zamość, often referred to as the Pearl of Renaissance and the City of Arcades, is a fortress established in 1580 surrounding a luxurious housing estate. The originator and, as we would call him today, the developer of the city was Jan Sariusz Zamoyski, the Great Chancellor of the Crown, magnate and magistrate, one of the most affluent people in the history of the world. With a purchasing power of at least twice as much as the one of Bill Gates and an excellent educational background, he was able to make his dreams come true. One of the most popular Italian architects of the time, Bernardo Mornado, was employed to draw the plans and supervise the construction works of Nowy Zamość. Born around 1540 the engineer had been working in Poland since 1569. Before signing the contract for constructing Zamość he had already completed several works for King Batory and several Polish magnates.

A small example of his talent was the project of theatre decorations prepared in the year when the construction of Zamość begun. The tragedy by his schoolmate, Jan Kochanowski, entitled "Odprawa posłów greckich" („The Send-Away of the Greek Envoys”) was performed during Jana Zamoyski’s wedding with Krystyna. On the same day Zamoyski’s fortune grew even more with the dowry of a member of the wealthiest family in Lithuania – the Radziwiłł family.

Luckily the agreement concluded in Lwow on the 1st of July 1578, in virtue of which one of the structures classified as World Cultural Heritage was built, has been preserved until today. It can be seen in the present premises of Ossoliński’s library in Wroclaw.