Belgian impressionist, painter of mainly landscapes and lively, atmospheric Paris and Brussels cityscapes. His paintings are a perfect combination of Belgian and French Impressionism. He had become acquainted with the latter in France, where he was reported a pupil of the landscape painter François Daubigny in Paris. He would also have known Manet personally. Frank was an adept of pleinairism from a very young age and developed his own style while working outdoors in the 1880s. He then worked a lot in Tervueren, but he also regularly visited the Belgian coast and Holland. During World War I he lived in France and Spain.