A man of independent temperament, he and Edgar Quinet decided, however, to separate themselves from the other members of the expedition shortly after the team's arrival in Greece in March 1829.
The two subsequently split and Quinet was forced by illness to return to France.
Vietty, ignoring official orders to return to France in November, continued his research in the Peloponnese and Attica until the summer of 1831.
Upon his return to France the commission for the Morea expedition examined his manuscripts and, judging them of exceptional value, recommended them for publication.
Unable to complete his work by 1835, when his stipend ran out, Vietty accepted commissions for sculpture.
Between 1835 and 1841, under financial constraints, Vietty pawned his manuscripts and drawings in order to survive.
He died at Tarare in the RhĂ´ne, without having published a single page of his research in the Morea.
A great artist, a true scholar, he loved Science and Art for themselves, without ambition, without recompense, retaining in poverty all his admiration and enthusiasm.
There are many who will mourn him, and yet he was a happy man.