Theodotus of Byzantium

Theodotus of Byzantium, also known as Theodotus the Shoemaker was an early Christian theologian of the 2nd century in Byzantium. He was who claimed that Jesus Christ was born of the Virgin Mary and the Holy Spirit as a mortal man, was adopted by God at his baptism, but was not himself God until after his resurrection.

This doctrine is sometimes called "Dynamic Monarchianism" or "Adoptionism".

This was declared heresy by Pope Victor I, and Theodotus was excommunicated.