Gleb Yevgenyevich Botkin (Russian: Глеб Евге́ньевич Бо́ткин; 30 July 1900 – 15 December 1969) was the son of Dr. Yevgeny Botkin, the court physician who was murdered at Yekaterinburg by the Bolsheviks with Tsar Nicholas II and his family on 17 July 1918.In later years, Botkin became a lifelong advocate of Anna Anderson, who claimed to be the surviving Grand Duchess Anastasia Nikolaevna of Russia.