Assumption Cathedral is located within 100 meters of the Oriental Hotel and the French Embassy, and the original building was the result of the request from a French missionary, Father Pascal in 1809 and the work of a French architect which saw the cathedral completed in 1821 during the reign of King Rama II. The cathedral was named Assumption after the Virgin Mary and she is commemorated at the church during The Feast of the Assumption, on St. Mary's Day on 15 August. Throughout the latter half of the 19th century, the church and surrounding area played an important role for Christian missionaries arriving in Bangkok, particularly after 1860. The cathedral is part of a series of buildings which consist of Assumption Convent School, Catholic Mission of Bangkok, Assumption Printing Press and rectory which were inhabited by the missionaries during their time in the city. However around 1909 or 1910 the church underwent significant reconstruction and was rebuilt in the romanesque style between 1910 and 1918. The church has a relatively tall rectangular structure with a red brick exterior which stands out against its surrounding white buildings. The tall square towers flank the main entrance. Inside is a high ceiling adorned with many ornate decorations. Construction costs were largely covered by a local catholic businessman, Mr Low Khiok Chiang who owned the nearby Kiam Hoa Heng & Company, a ChineseTeochewfamily business. In 1942, during World War II, nearby buildings were destroyed by bombing which resulted in serious damage to the church. It underwent extensive restoration shortly afterwards, and was partly refurbished in the 1980s and 1990s. Stained glass windows are now used in the cathedral today. Assumption Cathedral had been visited by two supreme pontiffs. First, in May 1984 the cathedral welcomed Pope John Paul II and on the 22nd of November 2019, Pope Francis visited the cathedral during his apostolic visit to Thailand where he conduct the holy mass with catholic youth from around the country, given that the church is the center of the Roman Catholic diocese there. The church is open seven days a week. Services for mass on Sundays are held at 6am, 7:30am, 8:30am, 10am and 5pm.
Special places
The significant part of the Cathedral is in the crypt underneath the Sanctuary which kept the remains of the bishops and the missionaries including that of Fr Nicholas Boonkerd Kitbamrung who was proclaimed a martyr by Pope John Paul II on 5 March 2000 in Vatican. His relics were transferred to the shrine built in the compound of St. Peter’s church in Sampran, Nakornprathom Province. There still remains a special altar devoted to him on the left side of the Cathedral. Besides being a place of worship and for performing sacred ceremonies, the role of the Assumption Cathedral is the church of the head of the local diocese which as of 2014 was led by Cardinal Michael Meechai Kitboonchu. The Cathedral is used to celebrate functions such as ordination of deacons, priests and bishops, and is said to be the centre of Catholics in Thailand.
Three schools are situated in the compound of the Cathedral: The Assumption College, the Assumption Convent and the Assumption Suksa. There used to be a seminary and a printing house. Many offices of the Catholic organizations used to be nearby the Cathedral.
Events
A ceremony held in the cathedral was that of the proclamation of Blessed Father Nicholas Boonkerd as Priest and Martyr.
