"Antigone": as she is marched toward her death, Antigone compares her own loneliness to that of Niobe. The "Niobe" of Aeschylus, set in Thebes, survives in fragmentary quotes that were supplemented by a papyrus sheet containing twenty-one lines of text. From the fragments it appears that for the first part of the tragedy the grieving Niobe sits veiled and silent. Sophocles too contributed a "Niobe" that is lost. Furthermore, the conflict between Niobe and Leto is mentioned in one of Sappho's poetic fragments, ("Before they were mothers, Leto and Niobe had been the most devoted of friends.") The subject of Niobe and the destruction of the Niobids was part of the repertory of Attic vase-painters and inspired sculpture groups and wall frescoes as well as relief carvings on Roman sarcophagi.