Simplify the following text for a Grade 9 native English-speaking person.
Original: Dr. Yevgeny Sergeivich Botkin , also known as Dr. Eugene Botkin ( 27 March 1865 â `` 17 July 1918 ) was the court physician for Tsar Nicholas II and Tsarina Alexandra and , while in exile with the family , sometimes treated the hemophilia-related complications of the Tsarevich Alexei Nikolaevich of Russia .
Simplified: Dr. Yevgeny Sergeivich Botkin ( 27 March 1865 -- 17 July 1918 ) , also known as Dr. Eugene Botkin , was the court physician for Tsar Nicholas II and Tsarina Alexandra . While he was in exile with the family , he often helped treat Tsarevich Alexei Nikolaevich of Russia .