Old St Paul's Cathedral was the cathedral of the City of London that, until the Great Fire of 1666, stood on the site of the present St Paul's Cathedral. Built from 1087 to 1314 and dedicated to Saint Paul, this building was perhaps the fourth such church at this site on Ludgate Hill, going back to the 7th century.

Work on the cathedral began after a fire in 1087, which destroyed the previous church. Work took more than 200 years, and over that time the architecture of the church changed from Norman Romanesque to early English Gothic. The church was consecrated in 1240, enlarged in 1256 and again in the early 14th century. At its completion in the mid-14th century, the cathedral was one of the longest churches in the world, had one of the tallest spires and some of the finest stained glass.

Old St Paul's Cathedral

The continuing presence of the shrine of the 7th century bishop Saint Erkenwald made the cathedral a site of pilgrimage in the Middle Ages. In addition to serving as the seat of the Diocese of London, the building developed a reputation as a social hub, with the nave aisle, "Paul's walk", known as a business centre and a place to hear the news and gossip on the London grapevine. During the Reformation, the open-air pulpit in the churchyard, St Paul's Cross, became the place for radical evangelical preaching and Protestant bookselling.

Old St Paul's Cathedral

The cathedral was in structural decline by the early 17th century. Restoration work begun by Inigo Jones in the 1620s was temporarily halted during the English Civil War (1642–1651). In 1666, further restoration was in progress under Sir Christopher Wren when the cathedral was devastated in the Great Fire of London. At that point, it was demolished, and the present cathedral was built on the site.

Old St Paul's Cathedral

Construction

Old St Paul's Cathedral was perhaps the fourth church at Ludgate Hill dedicated to St Paul. A devastating fire in 1087, detailed in the Anglo-Saxon Chronicle, destroyed much of the cathedral. King William I (William the Conqueror) donated the stone from the destroyed Palatine Tower on the River Fleet towards the construction of a Romanesque Norman cathedral, an act sometimes said to be his last before death.

Bishop Maurice oversaw preparations, although it was primarily under his successor, Richard de Beaumis, that construction work fully commenced. Beaumis was assisted by King Henry I, who gave the bishop stone and asked that all material brought up the River Fleet for the cathedral should be free from toll. To fund the cathedral, Henry I gave Beaumis rights to all fish caught within the cathedral neighbourhood and tithes on venison taken in the County of Essex. Beaumis also gave a site for the original foundation of St Paul's School.

Henry I's death was followed by a period of unrest and civil war known as "The Anarchy". Henry of Blois, Bishop of Winchester, was appointed to administer the affairs of St Paul's. Almost immediately, he had to deal with the aftermath of a fire at London Bridge in 1135. It spread over much of the city, damaging the cathedral and delaying its construction. During this period, the architectural style was changed from heavy Romanesque to Early English Gothic. Although the base Norman columns were left alone, lancet pointed arches were placed over them in the triforium and some heavy columns were substituted with clustered pillars. The steeple was erected in 1221 and the cathedral was rededicated by Bishop Roger Niger in 1240.

New work (1255–1314) After a succession of storms, in 1255 Bishop Fulk Basset appealed for money to repair the roof. The roof was rebuilt in wood, which ultimately ruined the building. At this time, the east end of the cathedral church was lengthened, enclosing the parish church of St Faith, which was now brought within the cathedral. The eastward addition was referred to as "The New Work".

After complaints from the dispossessed parishioners of St Faith's, the east end of the west crypt was allotted to them as their parish church. The congregation were also allowed to keep a detached tower with a peal of bells east of the church which had historically been used to peal the summons to the Cheapside Folkmote. The parish later moved to the Jesus chapel during the reign of Edward VI and was merged with St Augustine Watling Street after the 1666 fire.

This "New Work" was completed in 1314, although the additions had been consecrated in 1300. Excavations in 1878 by Francis Penrose showed the enlarged cathedral was long (excluding the porch later added by Inigo Jones) and wide ( across the transepts and crossing).