Patareni are a punk rock / Grindcore band from Croatia. They formed in the early 1980s. According to their music style, in comparison with the year when they started to play, they are considered to be probably the first grindcore band ever.
From Wikipedia.org
The best line-up:
Hash- Vocals
Hadjo- Guitars
Poda- Drums
Zhobo- Bass
Source: Personal friendship

Patareni on Last.fm.