Giorgione and the young Titian revolutionize the genre of the portrait.

It is exceedingly difficult and sometimes simply impossible to differentiate Titian's early works from those of Giorgione.

None of Giorgione's paintings are signed and only one bears a reliable date: his portrait of Laura (June 1, 1506), one of the first to be painted in the "modern manner", distinguished by dignity, clarity, and sophisticated characterization.

Italian scholar and engineer Fra Giovanni Giocondo, who has worked throughout Italy and in France for Charles VIII and Louis XII, mostly as an advisor, works on the defenses of Venice in about 1506.