Tsarevich Alexei surrounded by his tutors: c. 1915. 

Empress Alexandra and Tsarevich Alexei aboard the Standart: 1910.

Nicholas II and Tsarevich Alexei leaving Our Lady of Kazan Cathedral on 6 March, 1913. 

Nicholas II with his children Grand Duchesses Tatiana, Maria, and Anastasia and Tsarevich Alexei outside the Imperial train: 1914. 

Tsarevich Alexei and his dog Joy outside the Imperial train: c. 1915.

The Imperial children and Anna Vyrubova with officers in the Crimea: 1910.

The Imperial Family outside the Winter Palace: July 1914. 

Grand Duke Ernst Ludwig of Hesse, Nicholas II, and Tsarevich Alexei in the park at the Alexander Palace Park: 1908.

The Imperial Family at the windows of their train: 1913.

Tsarevich Alexei aboard the Standart: 1912.