The marble floor features unique heraldic designs and iconography that represent the social hierarchy of the 16th and 17th-century Knights.
Caravaggio painted 'The Beheading of Saint John the Baptist' specifically for this oratory while he was a fugitive in Malta.
The Cathedral was elevated to co-cathedral status by a papal decree in 1820.
The interior is entirely covered in gilded carvings, an aesthetic decision made in the 17th century to distinguish the interior from the severe exterior.
The crypt contains the remains of several Grand Masters, including Jean de Valette, the founder of the city of Valletta.
The cathedral contains a collection of 16th-century Flemish tapestries based on designs by Peter Paul Rubens.
St. John's Co-Cathedral is a 16th-century high baroque masterpiece commissioned by Grand Master Jean de la Cassière for the Order of the Knights of St. John. Designed by Glormu Cassar, the exterior presents a plain, fortress-like facade that contrasts sharply with the intricate, gold-leaf-laden interior. The floor consists of nearly 400 inlaid polychrome marble tombstones marking the burial sites of high-ranking knights. The cathedral houses Caravaggio’s 'The Beheading of Saint John the Baptist,' the artist’s largest painting and only signed work. Two additional Caravaggio paintings, 'Saint Jerome Writing,' are also held in the oratory. The vaulted ceiling features frescoes by Mattia Preti illustrating the life of John the Baptist. It serves as a co-cathedral alongside St. Paul's Cathedral in Mdina. The site is a primary example of European baroque art and architecture, reflecting the wealth and influence of the Order of St. John in Malta.
The center of the nave looking toward the high altar provides the best symmetry for architectural photography.
Use the provided audio guide, which is included in the entrance fee, to understand the complex symbolism of the floor tombs.
Avoid visiting during religious services, as the cathedral operates as an active place of worship.
Stiletto heels are strictly prohibited to protect the historic marble floor.
Do not attempt to enter wearing beachwear or sleeveless tops, as security will deny entry.
Closed on Sundays and public holidays for tourism; open for religious services only.
Modest dress is required: shoulders and knees must be covered. Stiletto heels are forbidden due to the fragile marble floor. No flash photography.
