German author, the younger of the Brothers Grimm.
The whole of the lives of the two brothers was passed together. In their school days, they had one bed and one table in common. As students, they had two beds and two tables in the same room. They always lived under one roof, and had their books and property in common.
In 1825 Wilhelm married a pharmacist’s daughter; Henriette Dorothea Wild, also known as Dortchen, at age 39. Wilhelm’s marriage in no way disturbed the harmony of the brothers. Wilhelm’s character was a complete contrast to that of his brother. As a boy he was strong and healthy, but as he grew up he was attacked by a long and severe illness, which left him weak all his life. His was a less comprehensive and energetic mind than that of his brother, and he had less of the spirit of investigation, preferring to confine himself to some limited and definitely bounded field of work; he utilized everything that bore directly on his own studies, and ignored the rest. These studies were almost always of a literary nature.
Wilhelm took great delight in music, for which his brother had but a moderate liking, and had a remarkable gift of story-telling.
From 1837-1841, the Grimm Brothers joined five of their colleague professors at the University of Göttingen to form a group known as the Göttinger Sieben (The Göttingen Seven). They protested against Ernst August, King of Hanover, whom they accused of violating the constitution. All seven were fired by the king.
Wilhelm Grimm died ON 16 December 1859 in Berlin of an infection at the age of 73.

Link to Wikipedia biography