Johannes Hermanus Koekkoek (Dutch 1778-1851) Estuary landscape Oil on panel Signed and dated 1826 on the boat lower left 35.5 x 49.5cm (13¾ x 19¼ in.) Unframed Provenance: From the estate of Christopher and Rosemary Warren The Koekkoek family was a famous dynasty of Dutch painters of which Johannes Hermanus Koekkoek (1778-1851) was the head. Koekkoek, together with his sons Barend Cornelis Koekkoek (1803-1862) and Hermanus Koekkoek (1815 -1882) became renowned for their marine paintings. A third son, Marinus Adrianus Koekkoek (1807-1868) was an established landscape painter, and a grandson Johannes Hermanus Barend Koekkoek (1840-1912) also became an artist who was initially influenced by his father but later changed his style to a kind of realism under the influence of The Hague School. The present work is a beautiful example of a landscape estuary painted in 1826. The clear, calm and glassy waters, together with the bright blue sky and light voluminous clouds, are particularly characteristic of the artist's work.