He painted pictures in the naturalist style, often using themes from his home town of Haugesund.
[2] Frøvig was born in humble circumstances in Haugesund[3][4] and grew up living on Strandgaten.
His father, Jacob Danielsen Frøvig (1834–1894), was a brazier, a craftsman that makes ornaments from bronze and brass.
His brother Daniel Andreas Frøvig (1870–1954) was a parish priest who later became a professor of theology at the University of Oslo.
[5] He received an artist education in Christiania at the Norwegian National Academy of Craft and Art Industry under Oscar Arnold Wergeland in 1898.