Various historical sources indicate that as early as the 16th century there were royal gardens situated between the eastern wing of the Royal Castle and the defensive wall. The discovery by archaeologists in 2001 of the relics of the 16th-century Wawel garden spurred an initiative to do restoration work. The exhibition “Royal Gardens at Wawel”, opened to visitors in 2005, presents the reconstructed Renaissance gardens from the times of King Zymunt I (around 1540).