Jacob Ludwig Carl and Wilhelm Carl Grimm

Hanau-born German writers, creators of enchanting classics of universal children's literature like John and Maria, Snow White and the Seven Dwarfs and The Bremen Musicians, which thrilled readers of all ages and times. They studied law at the University of Marburg, but distinguished themselves as researchers and philologists.
Influenced by romanticism, they gathered around 200 folk tales and legends which they published under the title Kinder-und Hausmärchen (1812-1815), the Tales of fairies for children, a work that achieved worldwide success and was followed by a work of similar characteristics, Deutsche Sagen (1816-1818), the Legends Germans.
At the same time, they developed linguistic studies that led to the elaboration of the great German grammar Deutsche Grammatik (1819-1837), in which he enunciated Grimm's law, which established the principle of regularity of laws phonetic. They also discovered metaphony, about the palatization of vowels, and apophony, an explanation of verbal structures from vowel variations, fundamental themes for the development of the modern german.

Appointed professors and librarians at the University of Göttingen (1829), they were fired (1837) for having signed the protest of the seven of Göttingen, directed against the king of Hanover, for his disrespect to constitution. Afterwards they lived in Kassel (1837-1840) until they moved to Berlin, where they remained working on the construction of a dictionary, until their respective deaths.
Source: Biographies - Academic Unit of Civil Engineering / UFCG 

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COSTA, Keilla Renata. "Jacob Ludwig Carl and Wilhelm Carl Grimm"; Brazil School. Available in: https://brasilescola.uol.com.br/biografia/irmaos-grimm.htm. Accessed on June 27, 2021.