STUDIO OF JAN WYCK EQUESTRIAN PORTRAIT OF WILLIAM III AT THE BATTLE OF THE BOYNE oil on canvas

STUDIO OF JAN WYCK EQUESTRIAN PORTRAIT OF WILLIAM III AT THE BATTLE OF THE BOYNE oil on canvas, 59 x 55cmProvenance: Acquired by the Knox family in the mid 19th c; thence by descent to the present vendor.On the reverse are two old handwritten labels one inscribed "This picture of King William at the Battle of the Boyne was bought by me (at a good round price) at the sale of S W Knox pictures 28 April 1865 for the express purpose of giving it to his young nephew Mr Robert Kyle Knox and which I now hereby do [to hang] in his house in Coleraine where it formerly was before his marriage as a wedding present or on my death as a remembrance which ever may happen first... signed Wm Knox... 9 May 1865."The second label reads "This picture comes from the collection of Lord Ashbrook and was presented by him to his daughter the Honbl Susanna Sophia Campbell of Portstewart Castle... That lady presented it to Samuel Wright... of Coleraine in 1848. She stated that it had been in possession of her father and family from the date at which it was painted - that King William sat for the portrait & that the painting is by Kneller [signed] R Kyle Knox."