Sixth angel blows the trumpet

The sixth angel blows the trumpet. Beside the angel sits God the Father on his throne, and the golden altar with four horns stands, from which a voice issues commanding that the four angels who are imprisoned must be released. The angels and the riders on horses with lion heads destroy a third of mankind. In the margin a four-line inscription in Latin. Eleventh print from a series of twenty-four depicting the Revelation of John on Patmos.