It is monumental oak with single-stemmed, hollow trunk, its girth was 1004 cm, height – 26 m and volume – 90 m³ (in 2014).

Age of the Chrobry is about 760 years, according to dendrochronological research.

[1] Oak was officially preserved (as a natural monument) since 1966[1].

Chrobry was measured in 1908 at the earliest, by Theodor Schube (German botanist), girth of the tree was 861 cm[1].

Chrobry remained in fatal condition, but in 2015 part of the crown was still alive[1].