Old Town in Piotrkow Trybunalski, Medieval old town in Piotrków Trybunalski, Poland.

The Old Town of Piotrków Trybunalski is a medieval town center in central Poland, built around a rectangular market square from which a regular grid of streets extends outward. Around the square stand townhouses, churches and a castle dating from different centuries, all within easy walking distance of one another.

The town's written record begins in 1217, and the oldest document explicitly granting it city rights was issued by Władysław Jagiełło in 1404, confirming earlier charters lost in a fire. The planned town with a market square and eight radiating streets took shape in the 14th century on a spit between the Strawa and Strawka rivers. Between 1493 and 1567, 38 sejm sessions were held here.

The name Rynek Trybunalski recalls the Crown Tribunal, whose sessions on Greater Poland, Mazovia, Kuyavia and Royal Prussia cases were held in Piotrków from the late 16th century, probably in the town hall. Since 2011 the main streets have not been municipal roads, which simplifies permits for cultural and entertainment events.

The area is compact and easy to cover on foot, with all the main buildings grouped around the central square. A full walk through the different streets and courtyards takes at least a couple of hours if done without rushing.

The town was laid out in the 14th century on a spit between the Strawa and Strawka streams, within an irregular polygon about 300 by 350 metres and roughly 8 hectares in area. Its market square measures 45 by 65 metres, with eight streets leaving its corners.