Theophylact of Ohrid
Catena Aurea · Markusevangelium 15
And the soldiers led him away into the hall, called Prætorium; and they call together the whole band. And they clothed him with purple, and platted a crown of thorns, and put it about his head, And began to salute him, Hail, King of the Jews! And they smote him on the head with a reed, and did spit upon him, and bowing their knees worshipped him. And when they had mocked him, they took off the purple from him, and put his own clothes on him.
The vainglory of soldiers, ever rejoicing in disorder and in insult, here displayed what properly belonged to them. Wherefore it is said, And the soldiers led him away into the hall called Prætorium, and they call together the whole band, that is, the whole company of the soldiers, and they clothed him with purple as a king.