Grukag is a member of the Frostwolf Clan.
WarCraft: Durotan: The Official Movie PrequelEdit
Sometime prior to Gul'dan's parley with Garad, during a joint Thunderlord / Frostwolf Clan hunt, an orc from the Thunderlord decided not to cede prey to the Frostwolves. Instead, he decided to challenge Grukag to mak'gora, where he lost to Grukag and was killed. This created a cold relationship between Frostwolf Clan and the Thunderlord Clan.
- Grukag on the