Gunnar Brynolf Wennerberg (12 August 1866, Otterstads Parish, Västergötland - 13 March 1950, Bad Aibling) was a Swedish-German painter and graphic designer.
His father, Gunnar Brynolf Wennerberg, was an artist who specialized in animal paintings.
The following year, he transferred to the newly founded Kunstnernes Frie Studieskoler in Copenhagen, where his primary instructor was Peder Severin Krøyer.
She died suddenly in 1912, at the age of forty, shortly after Brynolf and their surviving daughters had been granted Bavarian citizenship.
[1] From 1915, he lived in Bad Aibling and worked in a studio that was formerly occupied by the portrait painter, Wilhelm Leibl.
[4] In the 1920s and 30s, he produced advertising materials, which featured young, slender women, with a facial expression that became known as the "Wennerberg Smile".