Portrait of a man, half-length, holding a letter -
Dutch School
Portrait of a man, three-quarter length, wearing black and holding a glove in his left hand -
Dutch School
Portrait of a man, wearing a black hat and coat -
Dutch School
Portrait of a nobleman, probably Willem van den Bergh (born 1599) -
Dutch School
Renee de Bonneval (1515-c.50), c.1549 - (studio of) Clouet
Portrait Of Mrs Howard Johnston - Giovanni Boldini
Portrait of Sir James Innes-Kerr 1738-182 - Sir Henry Raeburn
Portrait presumed to be LouiseElisabeth de La Chastre Marquise de DreuxBreze 1749 - Jean-Marc Nattier
Portrait of a gentleman, full-length, in Ottoman robes, a page beside him, on a terrace before a Solomonic column - Giuseppe Bonito
Portrait of a lady, half length, holding a pink carnation - French School
Portrait of Dazincourt 1747-1809 1792 - Francois-Andre Vincent
Portrait of a gentleman, half-length, in a black gown and a cap, holding gloves - German School
Portrait of a Child - Mary Cassatt
Portrait Of A Man - Dutch School
Note that a few countries have copyright terms longer than 70 years: Mexico has 100 years, Colombia has 80 years, and Guatemala and Samoa have 75 years. This image may not be in the public domain in these countries, which moreover do not implement the 
