The original building, known as "Trinity Church" and later "Trinity Cathedral", contained eight chapels arranged around a ninth, central chapel dedicated to the Intercession; a tenth chapel was erected in 1588 over the grave of the venerated local saint Vasily (Basil). In the 16th and 17th centuries, the church, perceived (as with all churches in Byzantine Christianity) as the earthly symbol of the Heavenly City, was popularly known as the "Jerusalem" and served as an allegory of the Jerusalem Temple in the annual Palm Sunday parade attended by the Patriarch of Moscow and the Tsar.