Although the blessed Mary had already been called [to live apart] from this world, finally the passage of her life was completed, and all the apostles gathered from their particular regions at her house.  When they heard that she must be taken from the world, they all kept watch with her.  And behold, the Lord Jesus came with his angels, and after taking her soul he gave it to the angel Michael and left.  At dawn the apostles lifted her body on a bed, placed it in a tomb, and kept guard over it, in anticipation of the arrival of the Lord.  And behold, again the Lord approached them.  He took the holy body in a cloud and ordered it to be brought to Paradise, where, after regaining her soul, Mary now rejoices with his elect and enjoys the goodness of eternity that will never perish.
Gregory of Tours
from Glory of the Martyrs


585-588 AD
tr. Raymond Van Dam
Liverpool University Press, 1988
p. 22

This is the earliest western statement on the Assumption of the Virgin. Van Dam suggests that Gregory learned of this belief from someone who had visited the East.

More of the Assumption