Vexilla regis, WAB 51, is the final motet written by the Austrian composer Anton Bruckner.
Crucifixion by Velázquez
Vexilla regis prodeunt is a Latin hymn in long metre by the Christian poet and saint Venantius Fortunatus, Bishop of Poitiers. It takes its title from its incipit.
Detail from a choirbook leaf, Italy c.1400-1420