False, the current ruler, Casimir III, or more commonly known Casimir the Great, was of the very few feudal lords that built fully effective hospitals instead of the common barber. He also encouraged hygiene.
Actually, from what I remember, they basically just guarded their borders. No one got in, which in turn hampered the disease's spread, especially so cause plague really isn't that effective at spreading (airborne is far more effective).
Jun 8, 17 · +2 · Like · Report
Jun 8, 17 · +1 · Like · Report