Alexander Tamanian ( , March 4 , 1878 , Yekaterinodar - February 20 , 1936 , Yerevan ) was an Armenian neoclassical architect , who is remembered today for his work in the city of Yerevan . Alexander Tamanian ( , , March 4 , 1878 , Yekaterinodar - February 20 , 1936 , Yerevan ) was an Armenian neoclassical architect , who is remembered today for his work in the city of Yerevan .