The first blueprints were drafted by Vincenzo Scamozzi for Krzysztof Zbaraski, but the project did not gain approval: it would remain more a palace then a marshal bastion. Scamozzi had envision his creation at first and described it in the tractate named "The idea of universal architecture", which he later on partially embodied into stone in the city of Zbarazh. It appeared that this architect took "Utopia" of Thomas More too close to his heart. Therefore, the contender won a different project by Henryk van Peene, who was quite familiar with the landlords due to his previous work on Zbaraski's palace in Kraków.
