Church window in the Dom of Cologne, Germany, depicting Saint Gregorius, one of the four Latin Church Fathers. The window, made in the Royal Glass Painting Manufactory in Munich, was installed in 1847.
Olinthus Gregory (1774-1841) on engraving from the 1800s. English mathematician, author and editor. Engraved by H.Robinson after a painting by R.Evans and published by Fisher, Son & Co, London in 1846.