In the past, the mountain was called as Slatska Gora until 1445, and only from 1536 as Petrova Gora. The latter name was in honor of the Croatian King Petar Snačić who died in the Battle of Gvozd Mountain. The traditional Croatian historiography erroneously identified the Gvozd Mountain with Petrova Gora, as the more probable location of the battle was in the Kapela mountain pass of central Croatia.