Complex sentence: He was influenced by Osias Beert and Clara Peeters and is considered the inventor of the "banketje" (banquet still life genre similar to breakfasts, or "ontbijtjes"), together with Nicolaes Gillis.
Split into simpler sentences: He was influenced by Osias Beert and Clara Peeters. He is considered the inventor of the "banketje" (banquet still life genre similar to breakfasts, or "ontbijtjes"), together with Nicolaes Gillis.