The Jagiełło Oak is the most famous of the Białowieża Forest oaks. King Władysław II Jagiełło is said to have rested beneath it before the Battle of Grunwald. The tree was no older than 450 years, with a circumference of 550 cm at 130 cm from trunk's basis and a height of 39 m; it had large branches and a fair crown. The tree was knocked down by wind in 1974. The log can still be seen in the Białowieża National Park.