Conchobar mac Nessa
Case File: Conchobar vs. Ailill and Queen Maeve
Case description: Conchobar, king of Ulster, accuses Ailill and Maeve of dirty, rotten attempted theft. Since Maeve was jealous of Ailill's prized white bull, she decided to get her own prize stud—the Brown Bull of Cooley, which was Conchy's. The Ulster warriors—not including Cúchulainn—were even knocked out of commission by a curse.
Case status: Resolved. Cúchulainn, Conchobar's nephew, champion, and all-around favorite kid, fought the Connachtmen's representative, Fer Diad, and won. His bull died of exhaustion after killing Ailill's white bull, which he chased all over Ireland.