Photograph of Grand Duchess Maria Nikolaevna (1819-76) and her son Prince Sergei of Leuchtenberg (1849-77). Grand Duchess Maria is sitting on a chair facing right, with her head turned towards the camera. Prince Sergei is sitting on the floor beside her to the right, his right elbow resting on the chair. There is a curtain behind them to the left. Grand Duchess Maria Nikolaevna was the eldest daughter of Nicholas I, Emperor of Russia. She married Maximilian, Duke of Leuchtenberg in 1839. Her son Prince Sergei of Leuchtenberg was killed in the Russo-Turkish war.