Following his death in 1637, the castle was inherited by his daughter Konstancja Ligęza, who married Prince Jerzy Sebastian Lubomirski.

The land was partially owned Rzeszów's Elżbieta Komarnicka, widow of Adam Rzeszowski.

[4] The capital of Rzeszów's lands was located on a loess hill, in between Wisłok flood waters, allowing natural defences.

The fortress' courtyard was made of mud and wood, strengthened by wooden towers, located in its corners.

The gate which allowed access to head into the castle was located, where it currently is, in the middle of the western wall.

In 1603, he marched his army into Rzeszów - devastating the walls, burned the warehouses and began besieging the castle - which was successful after a few days.

In the following years, Mikołaj Ligęza had continued his scuffles with Stanisław Stadnicki of Łańcut (1600-1605), and with his son Władysław (1617-1619).

The fortifications had been additionally encircled by a wood and partially stone settlements including Mrowla, Świlcza, Krasne and Malawa.

In his testament to his wife he said: fortify the castle and call it the Ligęza's and moat it all, ( aby zamku domurowała i po wieczne czasy Ligęzowem nazwała i obwałować kazała, Polish).

After Lubomirski took on a bannire, he was expelled and moved to Silesia, which caused the fortifications in Rzeszów not to be reconstructed.

(Na przedmieściu stoi śliczny kościół, a jeszcze lepszy w mieście, obydwa z kamienia [...].

Ciężko zbudowany zamek wznosi się na południe od miasta nad jeziorem.

In the first few years after his father's death, Hieronim took on dealing with war specialised equipment and crafts - he fought with the Turks, Tatars and Cossacks.

Only up until about 1682, did he begin works on reconstructing the castle in Rzeszów, which he entrusted to Tylman van Gameren.