There is only one known portrait of Peter Ilyich Tchaikovsky. Tchaikovsky was a composer from the Romantic Period. He was born in 1840 and died in 1893.
Nikolai Kusnezow painted the portrait of Tchaikovsky in 1893, the year of his death. Little is known about the painting.
It is possible, although unlikely, that additional portraits exist. There are many photographs of Tchaikovsky in existence. This greatly minimized the number of portraits of the composer.
Portrait # 1, Nikolai Kusnezow, 1893
Still wondering about a portrait of a musician in your family collection? it could be a portrait of composer Peter Ilyich Tchaikovsky.