Question: Of Saint Peterborough Cathedral and Lancaster Cathedral, which is dedicated to more saints?
Context: The Cathedral of Saint Peter-in-Chains is a Roman Catholic Cathedral in Peterborough, Ontario, Canada.  The Cathedral is part of the Roman Catholic Diocese of Peterborough.  The parish was established in 1826 to serve the large Irish population in the area.  When the Diocese was established in 1882 the parish became a cathedral.  The current building was built in 1837-8 in the Gothic Revival style then popular in Upper Canada; it is one of the oldest remaining Catholic Churches in Ontario.  The Cathedral was built reportedly designed by architect James Chevette. The Dean of Peterborough is the head of the chapter at Peterborough Cathedral.  On the Dissolution of Peterborough Abbey in 1539 and the abbey-church's refoundation as a cathedral for the new bishop and diocese of Peterborough, care for the abbey/cathedral church passed from an abbot to a dean.  The deanery is vacant following the retirement of Charles Taylor on 2 October 2016. Born on 3 October 1944 he was educated at Queen Elizabeth's Grammar School, Crediton, Trinity College of Music and Worcester College, Oxford.  He was ordained in 1971 and began his career as a curate at St Andrew, Plymouth and Anglican chaplain at Plymouth Polytechnic.  His next curacy was All Saints, St Marylebone after which he was Domestic Chaplain to the Archbishop of Canterbury.  From 1980 to 1991 he was Vicar of Holy Trinity, Roehampton and then Rural Dean of Wandsworth.  He became an Archdeacon in 2000, at which time he was also appointed a Canon Residentiary of Peterborough Cathedral. Douglas Edward Hopkins (born 23 December 1902, died 1992) was a cathedral organist, who served at Peterborough Cathedral and Canterbury Cathedral. He was educated at Trinity College, Dublin and ordained in 1847.  He began his career as a Curate at St. Patrick's Cathedral, Dublin.  He was the Incumbent of Laracor from 1854 to 1862 before his years as Dean; and Vicar of St Mary's Leicester afterwards.  In 1875, he became Rector of Walgrave; and in 1878 an Honorary Canon of Peterborough Cathedral.  In 1880 he became Rector of Misterton, Leicestershire; and in 1883 a Residentiary Canon at Peterborough.  He wrote several books including a life of his old friend Archbishop William Magee (1896).  He also wrote "The Doctrine of Atonement" (1858), and "Shall we commute?"  (1869).  He died after a long illness on 9 September 1902. Francesca Massey took up the post of Sub-Organist at Durham Cathedral in 2011, where, in addition to the daily provision of music for services and training of the choristers, she regularly accompanies the cathedral choir in concerts, tours, broadcasts and recordings.  Born in Birmingham, Francesca was educated at Cambridge University and the Royal Northern College of Music (on a prestigious ABRSM Scholarship).  She has held Organ Scholarships at St George's Chapel, Windsor Castle, Gonville and Caius College, Cambridge and Manchester Cathedral, and was Assistant Organist at Great St Mary's Church, Cambridge and Assistant Director of Music at Peterborough Cathedral. Peterborough Cathedral, properly the Cathedral Church of St Peter, St Paul and St Andrew – also known as Saint Peter's Cathedral in the United Kingdom – is the seat of the Anglican Bishop of Peterborough, dedicated to Saint Peter, Saint Paul and Saint Andrew, whose statues look down from the three high gables of the famous "West Front".  Although it was founded in the Anglo-Saxon period, its architecture is mainly Norman, following a rebuilding in the 12th century.  With Durham and Ely Cathedrals, it is one of the most important 12th-century buildings in England to have remained largely intact, despite extensions and restoration. St Walburga's Convent stands to the north of Balmoral Road, Lancaster, in Lancashire, England.  It was built in 1851–53, and designed by the local architect E. G. Paley.  The building is connected to the convent chapel of Lancaster Cathedral by an L-shaped corridor.  It pre-dates the cathedral, and was the earliest structure to be built on the cathedral complex.  The convent is constructed in sandstone rubble with ashlar dressings, and has a slate roof.  Its architectural style is Gothic Revival.  The building has an L-shaped plan and is in two storeys.  It is recorded in the National Heritage List for England as a designated Grade II listed building. Lancaster Cathedral, also known as The Cathedral Church of St Peter and Saint Peter's Cathedral, is in St Peter's Road, Lancaster, Lancashire, England.  It was a Roman Catholic parish church until 1924, when it was elevated to the status of a cathedral.  It started as a mission church in 1798, and the present church was built on a different site in 1857–59.  It was designed by E. G. Paley in the Gothic Revival style.  In 1901 a baptistry was added by Austin and Paley, and the east end was reordered in 1995 by Francis Roberts.  The cathedral is in active use, arranging services, concerts and other events, and is open to visitors.  The building is recorded in the National Heritage List for England as a designated Grade II* listed building. The Becket Casket is a reliquary in Limoges enamel now in the Victoria and Albert Museum.  It is made of gilt-copper round a wooden core, decorated with champlevé enamel, and of a shape called a "chasse".  It was made in about 1180–90 in Limoges, France, and depicts one of the most infamous events in English history.  On the night of 29 December 1170, Archbishop Thomas Becket was murdered in Canterbury cathedral by four knights obeying the wishes of King Henry II.  It provoked outrage throughout Europe, and pilgrims flocked to Canterbury to pray at the site of the murder.  In 1173 Becket was canonized and his shrine was one of the most famous in the Christian world, until its total destruction in 1538 during the reign of Henry VIII.  It is thought that this particular casket was made to hold the relics of Thomas Becket that were taken to Peterborough Abbey (now Peterborough Cathedral) by Abbot Benedict in 1177.  Benedict had been Prior at Canterbury Cathedral and therefore saw Becket's assassination.
Answer: Peterborough Cathedral