Keywords: Hamilton - Francis Seymour Conway, Marquis of Hertford.jpg w Francis Seymour-Conway 1st Marquess of Hertford 1718-1794 2half otherdate century 18 pastel paper cm 58 5 45 5 Unidentified private collection http //elogedelart canalblog com/archives/2009/07/28/14545351 html other versions PD-old-100 Hugh Douglas Hamilton 18th-century portrait paintings in unidentified private collections 1760c Francis Seymour-Conway 1st Marquess of Hertford 1760c 18th-century pastel portraits of men at bust length 1760c Males with blue coats in art 1760c Blue clothing in art male 1760c Powdered wigs in art 1760c |