Sketch on the Subject of the Trinity Beneath the Oak of Mambre

This sketch on the Subject of the Trinity Beneath the Oak of Mambre, painted in 1821 and now in the Hermitage Museum, was executed while Bryullov was still a student at the Imperial Academy of Arts in St. Petersburg. The subject derives from Genesis 18, where three angels (interpreted in the Christian tradition as a pre-figuration of the Trinity) appear to Abraham at the oak of Mambre. This iconographic type, known in the Orthodox tradition primarily through Andrei Rublev's famous icon, was also treated in the Western academic tradition as a legitimate religious history painting subject. For Bryullov as a student, tackling this subject demonstrated his competence in religious figure painting — a key component of academic training. The Academy sent him to Italy on pension in 1822, the year after this work, suggesting it formed part of his graduation achievements. The Hermitage holds it as a document of his formative years before his Italian breakthrough.

As a student work, the sketch shows Bryullov applying academic compositional principles: three figures in a landscape, arranged to suggest both the sacred and the natural. The handling reflects careful academic drawing rather than the confident painterly freedom of his mature work. The compositional logic follows Western baroque models of the Trinity-Mambre subject.