Zogres

The word Zogre is a shortened word for zombie ogre (Z+ogre) and they have a combat level of 56. Zogres are known for their money making as they drop Ogre coffin keys. When opening the chests with the ogre coffin key, you will recieve a variety of skilling items and cash, or simply zogre bones. A fun thing to know is that killing zogres counts as killing Ogres, and Zombies (Slayer task)

Locations
South-east of Castle wars, in Jiggig (Spirit Tree -> Training -> Medium -> Zogres)