When Vespasian, the Roman emperor, heard the story of Christ's passion, as related by a knight who had just returned from the Holy Land, he sent a commission to Jerusalem to investigate the matter and bring back some holy relic to cure his son Titus of leprosy.
In due time the ambassadors returned, giving Pilate's version of the story, and bringing with them an old woman (known after her death as St.
Veronica).

She produced the cloth with which she had wiped the Lord's face, and upon which his likeness had been stamped by miracle.

The mere sight of this holy relic sufficed to restore Titus, who now proceeded with Vespasian to Jerusalem.

There they vainly tried to compel the Jews to produce the body of Christ, until one of them revealed, under pressure of torture, the place where Joseph was imprisoned.

Vespasian proceeded in person to the dungeon, and was hailed by name by the perfectly healthy prisoner.