Rosslyn Chapel. Rosslyn Chapel, formerly known as the Collegiate Chapel of St Matthew, is a 15th-century chapel located in the village of Roslin, Midlothian, Scotland. Rosslyn Chapel was founded on a small hill above Roslin Glen as a Catholic collegiate church in the mid-15th century. The chapel was founded by William Sinclair, 1st Earl of Caithness of the Scoto-Norman Sinclair family. Rosslyn Chapel is the third Sinclair place of worship at Roslin, the first being in Roslin Castle and the second in what is now Roslin Cemetery. Sinclair founded the college to celebrate the Divine Office throughout the day and night, and also to celebrate Masses for all the faithful departed, including the deceased members of the Sinclair family. During this period, the rich heritage of plainsong or polyphony were used to enrich the singing of the liturgy. Sinclair provided an endowment to pay for the support of the priests and choristers in perpetuity. The priests also had parochial responsibilities. After the Scottish Reformation, Catholic worship in the chapel was brought to an end. The Sinclair family continued to be Catholics until the early 18th century. From that time, the chapel was closed to public worship until 1861. It was re-opened as a place of worship according to the rites of the Scottish Episcopal Church, a member church of the Anglican Communion. It was reported in The Argus of Melbourne, Australia that Rosslyn Chapel was the site of an alleged bombing attempt by a suffragette. Since the late 1980s, the chapel has been the subject of speculative theories concerning a connection with the Knights Templar and the Holy Grail, and Freemasonry. It was prominently featured in this role in Dan Brown's bestselling novel The Da Vinci Code and its 2006 film adaptation. Medieval historians say these accounts have no basis in fact. Rosslyn Chapel remains privately owned. The current owner is Peter St Clair-Erskine, 7th Earl of Rosslyn. The original plans for Rosslyn have never been found or recorded, so it is open to speculation whether or not the chapel was intended to be built in its current layout. Its architecture is considered to be among the finest in Scotland. Construction of the chapel began on 20 September 1456, although it has often been recorded as 1446. The confusion over the building date comes from the chapel's receiving its founding charter to build a collegiate chapel in 1446 from Rome. Sinclair did not start to build the chapel until he had built houses for his craftsmen. Although the original building was to be cruciform, it was never completed. Only the choir was constructed, with the retro-chapel, otherwise called the Lady chapel, built on the much earlier crypt believed to form part of an earlier castle. The foundations of the unbuilt nave and transepts stretching to a distance of 90 feet were recorded in the 19th century. The decorative carving was executed over a forty-year period. After the founder's death, construction of the planned nave and transepts was abandoned-either from lack of funds, lack of interest or a change in liturgical fashion. The Lower Chapel should not be confused with the burial vaults that lie underneath Rosslyn Chapel. The chapel stands on fourteen pillars, which form an arcade of twelve pointed arches on three sides of the nave. At the east end, a fourteenth pillar between the penultimate pair form a three-pillared division between the nave and the Lady chapel. The three pillars at the east end of the chapel are named, from north to south: the Master Pillar, the Journeyman Pillar and, most famously, the Apprentice Pillar. These names for the pillars date from the late Georgian period, prior to this period they were called the Earl's Pillar, the Shekinah and the Prince's Pillar. One of the more notable architectural features of the Chapel is the Apprentice Pillar, or Prentice Pillar. Originally called the Prince's Pillar the name morphed over time due to a legend dating from the 18th century, involving the master mason in charge of the stonework in the chapel and his young apprentice mason. According to the legend, the master mason did not believe that the apprentice could perform the complicated task of carving the column without seeing the original which formed the inspiration for the design. The master mason travelled to see the original himself, but upon his return was enraged to find that the upstart apprentice had completed the column by himself. In a fit of jealous anger, the master mason took his mallet and struck the apprentice on the head, killing him. The legend concludes that as punishment for his crime, the master mason's face was carved into the opposite corner to forever gaze upon his apprentice's pillar.