Léal Souvenir (also known as Timotheus or Portrait of a Man) is a small 1432 oil-on-oak panel portrait by the Early Netherlandish painter Jan van Eyck. The sitter has not been identified, but his highly individual features suggest a historical person rather than the hypothetical ideal usual at the time in northern Renaissance portraiture; his slight and unassuming torso is contrasted with a sophisticated facial expression. His features have been described as "plain and rustic", yet thoughtful and inward-looking. A number of art historians, including Erwin Panofsky, have detected mournfulness in his expression. The sitter was apparently significant enough a member of the Burgundian duke Philip the Good's circle that his court painter portrayed him.
The man sits before an imitation parapet with three sets of painted inscriptions, each rendered to look as if chiselled or scratched into stone. Van Eyck did not have full command of either classical Greek or Latin and made errors, so readings by modern scholars vary. The first inscription is in Greek and seems to spell "TYΜ.ωΘΕΟC", which has not been satisfactorily interpreted but has led some to title the work Timotheus. The middle reads in French "Leal Souvenir" ("Loyal Memory") and indicates that the portrait is a posthumous commemoration. The third records van Eyck's signature and the date of execution. The 19th-century art historian Hippolyte Fierens-Gevaert identified the lettering "TYΜ.ωΘΕΟC" with the Greek musician Timotheus of Miletus. Panofsky drew the same conclusion, eliminating other Greeks bearing the name Timothy; they were of religious or military background, professions that do not match the civilian dress of the sitter. Panofsky believed the man was probably a highly placed musician in Philip's court.
More recent research focuses on the legalistic wording in one of the inscriptions, suggesting to some that he was in some way connected to the legal profession, or an employee of Philip the Good. The panel was acquired in 1857 by the National Gallery, London, where it is on permanent display.