Baphomet was the name of the speaking head which the Knights Templar allegedly worshiped.

It has been suggested that this head — sometimes described as similar to a computer — was the secret which the Templars found, the thing which made them the most powerful economic force in Medieval Europe, and that was the secret they died to protect. Most researchers say the existence of a physical head per se is unlikely, and it was probably a highly symbolic reference.

Templars party Baphomet style

Also: Aleister Crowley used Baphomet as one of his many titles.