Painted, it is thought by Gilbert Jackson, this portrait came up for auction at Sotherbys and presumably is in private hands. William was Marquis of Hertford and later the second Duke of Somerset. He fought in the West for the royalist cause, at Lansdown and with Rupert in Bristol , later being recalled to Oxford to hold the city in the King’s absence while he was on campaign. He was also foremost in trying to reach agreement between King and Parliament through his brother-in-law the Earl of Essex.
William is pictured in a plain black short tabbed doublet, laced falling band and cuffs. The doublet is cheekily open at the bottom to show a small piece of lace poking out from his shirt.
Here is a detail showing the lace on his band. Notice also the braided decoration on the seams of his doublet.