sentences:  The construction of the theatre began in 1911, under the supervision of architect João de Moura Coutinho, and continued until 1915 (with a capacity for 1500 people).On 21 April 1911, the theatre was inaugurated with the presentation of the operetta "Rainha das Rosas" ("La reginetta delle rose") by Ruggero Leoncavallo, performed by the "Éden Teatro de Lisboa" company, under the direction of Luiz Galhardo, and starring Palmira Bastos in the principal role.The following day the actress participated in the unveiling of two marble plaques, in her honour, and to the architect Moura Coutinho for the new building.