1550 portrait of Hungarian nobleman 

Gregor Baci

Impaled through the head with a lance. 

(Collection of Archduke Ferdinand II of Austria)

Portrait of a Young Woman (detail)

Petrus Christus

 Netherlandish, c. 1470

An unfinished portrait of a child - attributed to Ivan Nikitin (1690–1741)

James Ensor
Portrait of the Artist Surrounded by Masks
1889
(Menard Art Museum, Komaki City, Japan)

"This post-mortem portrait was painted by Pierre Le Ber in 1700 immediately after Marguerite Bourgeoys' death. The work has been in the hands of the Congregation of Notre-Dame ever since and is currently exhibited at the Marguerite Bourgeoys Museum. During the 19th and early 20th centuries, the portrait was retouched several times, completely altering its appearance. The restoration of the painting in 1963-1964 revealed the true face of Marguerite Bourgeoys."

full story here:
http://www.ameriquefrancaise.org/en/article-385/True_Portrait_of_Marguerite_Bourgeoys.html

Lucian Freud, Self Portrait; Reflection, 2003-2004
Height: 17.78 cm (7 in.), Width: 12.7 cm (5 in.)

Freud was 82 years old at the time this painting was completed.