Portrait of Izabela (Elżbieta) Potocka née Lubomirska as Polyhymnia.

Izabela Potocka née Lubomirska (1736–1816) was depicted as Polyhymnia, the muse of sacred poetry and eloquence, in a pendant pair with her relative Aleksandra Potocka as Melpomene. Both portraits, now at Wilanów Palace, were painted in 1779 and represent Batoni's service to the Polish magnate class during the final decades of the Polish-Lithuanian Commonwealth. Polyhymnia — typically shown in a pensive or oratorial pose with a veil — was associated with serious literary and musical cultivation, an appropriate alter ego for a woman of rank in an Enlightenment household. Izabela Potocka was one of the great women of late Polish aristocratic culture, and the pairing of her mythological portrait with her kinswoman's created a visual celebration of female intellectual virtue in the Wilanów collection.

Oil on canvas designed as a pendant with the Melpomene portrait, requiring formal symmetry across the pair. Polyhymnia's attributes — a veil, a pensive pose, possibly a book or scroll — are integrated with Batoni's characteristic elegance. The palette balances with the companion piece while maintaining the sitter's individual identity.