Christophorus Clavius, Italian astronomer - Stock Image - C052/8313 - Science Photo Library

Public & Live Internet Auction 669 by A. Karamitsos - Issuu

Christophorus Clavius, Italian astronomer - Stock Image - C052/8313 - Science Photo Library

Christophorus Clavius, Italian Astronomer Stock Photo - Alamy

Astronomical calendar - Stock Image - V700/0098 - Science Photo Library

Christoph clavius hi-res stock photography and images - Alamy

Christopher clavius hi-res stock photography and images - Alamy

Christophorus Clavius, Italian Astronomer Stock Photo - Alamy

Calendar, 16th century - Stock Image - C056/2882 - Science Photo Library

Christopher clavius hi-res stock photography and images - Alamy