The Ambassadors (Holbein) viewer must approach the painting from high on the right side, or low on the left side, to see the form as an accurate rendering of a human skull. While the skull is evidently intended as a "vanitas" or "memento mori", it is unclear why Holbein gave it such prominence in this painting. One possibility is that this painting represents three levels: the heavens (as portrayed by the astrolabe and other objects on the upper shelf), the living world (as evidenced by books and a musical instrument on the lower shelf), and death (signified by the skull). It has also
The Ambassadors (Holbein) (2004), who concludes that "the general coherence of the evidence assembled by Hervey is very satisfying"; however, North also notes that, despite Hervey's research, "[R]ival speculation did not stop at once and is still not entirely dead". Giles Hudson, for example, has argued that the man on the right is not de Selve, but Jean's brother François, Bishop of Auxerre, a noted patron of the arts with a known interest in mathematical instruments. The identification finds support in the earliest manuscript in which the painting is mentioned, a 1589 inventory of the Chateau of Polisy, discovered by Riccardo Famiglietti. However,