696926 Portrait of Jacob Grimm, 1837 (colour litho) by German School, (19th century); Private Collection; (add.info.: From an illustration of Die G繹ttinger Sieben by Karl Rohde. The G繹ttingen Seven (G繹ttinger Sieben) were a group of seven professors from G繹ttingen. In 1837 they protested against the abolition or alteration of the constitution of the Kingdom of Hanover by Ernest Augustus and refused to swear an oath to the new king of Hanover.); Prismatic Pictures ; German, out of copyright.