Fergus mac Roich is a character from Irish mythology, known for his role in the epic tales of the Ulster Cycle. He is often depicted as a warrior and king, associated with the kingdom of Ulster. Fergus is notable for his strength and bravery, as well as his complex relationships with other characters, including Cú Chulainn and Queen Medb. In the stories, Fergus is sometimes portrayed as a tragic figure, having been exiled from his homeland. Despite his challenges, he remains a loyal ally to the heroes of Ulster. His adventures and conflicts contribute significantly to the rich tapestry of Celtic mythology and its themes of honor, loyalty, and fate.