Georg Gottfried Julius Dehio, was a Baltic German art historian.
In 1900, Dehio started the "Handbuch der deutschen Kunstgeschichte", published by Ernst Wasmuth. The project is ongoing and managed by the 'Dehio-Vereinigung', Munich.
He is the... Wikipedia
Born: November 22, 1850, Tallinn, Estonia
Died: March 19, 1932 (age 81 years), Tübingen, Germany
Children: Ludwig Dehio
Partner: Charlotte Dehio