Second is the Ulster Cycle, mentioned above, also known as the Red Branch Cycle or the Heroic Cycle. This cycle contains tales of the conflicts between Ulster and Connacht during the legendary reigns of King Conchobar mac Nessa in Ulster and Medb and Ailill in Connacht. The chief saga of the Ulster cycle is "Táin Bó Cúailnge", the so-called "Iliad of the Gael,". Other recurring characters include Cú Chulainn, a figure comparable to the Greek hero Achilles, known for his terrifying battle frenzy, or "ríastrad", Fergus and Conall Cernach. Emain Macha and Cruachan are the chief locations. The cycle is set around the end of the 1st century BC and the beginning of the 1st century AD, with the death of Conchobar being set at the same day as the Crucifixion.