Self Portrait, detail from The Preaching and Acts of the Antichrist -
Luca Signorelli
Portrait Of Francesco Agostino Della Chiesa, Bishop Of Vigevano (Born 1717) - Davide Loreti
Portrait of Louis Antoine de Pardaillan de Gondrin, duc d'Antin (1665-1736), half-length, in armour - Hyacinthe Rigaud
Portrait of a Man, 1593 - Robert Peake
Portrait of Andre Campra 1660-1744 - Nicolas Etienne Edelinck
Untitled - (after) Largilliere, Nicholas de
Portrait of Montague Bertie, Earl of Abingdon (1740-1799), three-quarter-length, in peer's robes - (after) Kneller, Sir Godfrey
Portrait of the Hon. Ralph Nevill, full-length, in red jacket and riding britches, holding a crop in his left hand and horn in his right - John Lucas
A Portrait Study of Charles-Claude de Flahaut de la Billarderie, Comte d'Angiviller (1730-1809), seated three-quarter-length - (after) Joseph Siffrein Duplessis
Self Portrait aged fifty - Charles Jervas
Self Portrait - Luca Signorelli
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 
