Zimri was a king of ancient Israel whose story was told in 1 Kings Chapter 16 of The Bible. He was a commander who committed regicide against his king Elah, and took on his position as king. To ensure that no one would take the kingship away from him, he murdered all of Elah's family members and friends. However, when the Israelites heard that Elah was murdered they appointed their commander Omri as king. Frigtened, Zimri set the palace on fire and killed himself. He reigned for seven days. Now, his name is often used to describe a traitor that betrays his or her master.