 She believes that a connected site in Cerbureni may preserve Marcu's only known portrait, done in terracotta by Italian artisans, and showing him as a young child.Marcu's first-ever mention is as a "ktitor", or restorer, of Târgoviște's Princely Church, which was in fact a project of his father's.Rădulescu also distinguishes clues that Petru may have wanted his son to acquire a classical education.