Virgin Mary into Heaven. The cathedral was originally dedicated to S. John the Baptist, and occupied the former temple of Mars. When it became too small for the clergy and necessary rituals, a new cathedral, dedicated to S. Reparata, was built. In 816, the Emperor Louis the Pious held a council at Aix, at which it was ordered that Canons and Canonesses live together according to a set of rules (canons, regulae). In the Roman synod of Pope Eugene II of November 826, it was ordered that Canons live together in a cloister next to the church. In 876, the Council of Pavia decreed in Canon X that the bishops should enclose the Canons: uti episcopi in civitatibus suis proximum ecclesiae claustrum instituant, in quo ipsi cum clero secundum canonicam regulam Deo militent, et sacerdotes suos ad hoc constringant, ut ecclesiam non relinquant et alibi habitare praesumant. The cathedral was administered by a Chapter, composed of five dignities and thirty-seven Canons. The dignities were: the Provost, the Archdeacon, the Archpriest, and the Dean. The diocese also had twelve collegiate churches, the most important of which is San Lorenzo. Diocesan synods A diocesan synod was an irregularly held, but important, meeting of the bishop of a diocese and his clergy. Its purpose was (1) to proclaim generally the various decrees already issued by the bishop; (2) to discuss and ratify measures on which the bishop chose to consult with his clergy; (3) to publish statutes and decrees of the diocesan synod, of the provincial synod, and of the Holy See. 1073 - Raynerius. 1139 - Gottifredo degli Alberti. 1310, 13 August - Antonio D'Orso. 1327, 1 August - Francesco di Silvestro. 1343 - Angelo Acciaiuoli seniore. 1346 Angelo Acciaiuoli 1350, March - Angelo Acciaioli seniore. 1372, 13–14 January -Angelo Ricasoli. 1393, 3 July - Onofrio Visdomini. 1415 - Amerigo Corsini. 1446, 22 April - Antonino Pierozzi. 1508 - Cosimo Pazzi. 1517 - Cardinal Giulio de' Medici 1565, 29 March - Antonio Altoviti. 1569, 5 May - Antonio Altoviti. 1573, 9 April - Antonio Altoviti (provincial synod) 1589, 26 March-11 June - Cardinal Alessandro de' Medici. 1603, 17 June - Cardinal Alessandro de' Medici. 1610, 27 May - Alessandro Marzi Medici. 1614, 4 June - Alessandro Marzi Medici. 1619, 14–15 May - Alessandro Marzi Medici. 1623, 17 May - Alessandro Marzi Medici. 1627, 18 May - Alessandro Marzi Medici. 1629, 10 May