Note:  Do not rely on this information. It is very old.

Aaron

Aaron, a son of Amram and Jochebed, of the tribe of Levi, and brother of Moses and Miriam. When Moses went to receive the law on Mount Sinai, Aaron yielded to the importunity of the Israelites and made a golden calf for them to worship as a symbol of Jehovah. In obedience to Divine command he was appointed High-Priest, and the tribe of Levi was consecrated to the service of God. At Hazeroth he conspired against Moses with Miriam, and was rebuked by a voice from the pillar of cloud. He died at the age of 123, after holding the priestly office for 40 years.

Click for more about Sinai