What is "matrak"

Matrak is an Bosnian- Ottoman combat sport based on sword and shield fighting. Invented by famous Bosniak statesman of the Ottoman Empire, historian and scientist Nasuh Matrakčija Visočak (full name in Turkish: Nasuh bin Karagöz bin Abdullah el-Bosnavî) in the 16th century. It is played with wooden sticks covered with leather simulating a sword, and a wooden leather covered shield. The top of the sticks are rounded and slightly wider than the body resembling bowling pins. The game is a kind of combat simulation, and is played on a lawn. It was used by Ottoman soldiers as practice for melee combat.

In the television series Muhteşem Yüzyıl, it is shown as a combat-game.