Italy: Gallienus (218-268); 41st Roman emperor; from the book Romanorvm imperatorvm effigies: elogijs ex diuersis scriptoribus per Thomam Treteru S. Mariae Transtyberim canonicum collectis; c. 1583. Gallienus was the son of Emperor Valerian; and initially served as co-emperor alongside his father in 253; dividing the Roman Empire between them. While Valerian dealt with the East; Gallienus was tasked with dealing with the Germanic tribes of the West.