The escutcheon shows the coats-of-arms of Frans Banninck Cocq (1605-1655) and his wife Maria Overlander (1603-1678), flanked by the coats-of-arms of their respective grandparents on either side; on the left from above: Cock, Banninck, Frijtagh and Haeck; on the right from above: Overlander, Hooft, Sijs and Lons.
Frans Banninck Cocq is known today primarily as the captain in Rembrandt van Rijn's famous Nightwatch, which shows Banninck Cocq and the company of civil guards he commanded. He was burgomaster of Amsterdam and advisor to his potent brothers-in-law Cornelis and Andries de Graeff. In 1630 Banninck Cocq married Maria Overlander, daughter of Volkert Overlander, who was one of the founders of the Dutch East Trading Company and commissioner of Ilpenstein castle (see lots 632 and 633). When Volckert Overlander died, Banninck Cocq and his wife inherited his properties north of Amsterdam along with the title Lord of Purmerland and Ilpendam and Castlelord of Ilpenstein.
Two more escutcheons relating to Banninck Cocq are known. The first, oil on panel, 111.5 x 80.5 cm., shows the Banninck Cocq coat-of-arms amidst his four quarters, same as the left four in the present painting. (See: R. van Luttervelt, 'Het grafbord van Frans Banningh Cock', in: Amstelodamum, 38, February 1951). It originally adorned the church of Ilpendam, and is now in the collection of the Rijksmuseum, Amsterdam. The other, a terracotta relief, 59 x 22.5 cm., again shows Frans Banninck Cocq's coat-of-arms, but now flanked by eight coats-of-arms: to the left from above: Cock, Frijtagh, Van Campen and Otter; to the right from above: Banninck, Haeck, Van der Hem and Hooft. These coats-of-arms point to Banninck Cocq's pedigree, except for the Hooft coat-of-arms that as of yet cannot be linked to Banninck Cocq's direct pedigree (See: Jaap Leeuwenberg, Beeldhouwkunst in het Rijksmuseum, The Hague, 1973, p. 306). Once in Ilpenstein castle, it was acquired by the merchant Van Gelder in 1874 and it is now in the Rijksmuseum as well.