It was opened on 24th November 1924 by the Governor, Sir Charles C. Munro and is believed to be on the site of an old hermitage. The Casemates Gates, which lead into the beautifully refurbished Casemates Square, were opened in 1727 and are a typical portal in the ancient City walls. Other notable landmarks worth visiting are the Charles V Wall, Devil's Tongue, Kings Bastion, Line Wall and Southport Gates. Originally it was the convent of Franciscan Friars who dwelt there from 1531. The Ballroom, where regular classical music recitals are held, is formed from the nave of the chapel.
Next door is the chapel itself.
King's Chapel, is part of the original Convent, where two former Governors are buried and which displays various regimental flags. It is open to the public daily. During the great sieges the constant barrage of shot and shell destroyed many of the original Spanish and Moorish buildings. However, some of the original structures can still be seen. It dates back to the 11th century and this 'Tower of Homage' is the only remaining part of the original castle complex.