High Quality Content by WIKIPEDIA articles! The Royal Alexandra Theatre is a theatre in Toronto, Ontario, Canada located near King and Simcoe Streets. Built in 1907, the Royal Alex is the oldest continuously operating legitimate theatre in North America. A 1500-seat, beaux-arts style, proscenium-stage theatre, with two balcony levels, built in the style typical of 19th century British theatres. Construction began in 1905 and was completed in 1907. Since 1963 it has been owned by Ed Mirvish Enterprises, a company established by Toronto department store owner Edwin Mirvish.