Turopolje or, more often, The Field of Tur got its name from ancient Slavic inhabitants who called it after wild cattle known to them from their previous homeland. It also testifies the existence of deep alluvial oak-tree forests covering the largest part of Turopolje until modern times… Turoplje was in documents referred to as the Field of Zagreb (Campus Zagrabiensis). 
The tur disappeared in the 17th century as a result of cutting down forests and hunting. Its relatives can be still found in Poland. The first record of Turopolje, referred to as Campus Turou, can be found in a roll from 1334. Until the 17th century the area of Turopolje was in documents referred to as the Field of Zagreb (Campus Zagrabiensis). 

The remains of the Stone Age – stone axes found in Mraclin and Peršinovec - testify the existence of life in these parts even in prehistoric times. Findings that testify about it are the Roman graves with the money from 69 – 79 before Christ, and the remains of the town of Andautonija.

People that lived in this region were Illyrians (the oldest inhabitants of our homeland and native region), Celts (they came in 4th century before Christ and they built a fortress Segestika), Romans (soldiers, warriors, founded Andautonia) and Slavs (distant predecessors of Croats that fled into these regions from Huns and Avars). Croats came to Turopolje in the 7th century and in the 8th century they founded a state, The Principality of Posavska Hrvatska with Ljudevit Posavski at its head, having seat in Siscia. In the 10th century Prince Tomislav became the 1st Croatian king.