Holy Rosary (Kalawar) Church - Bangkok
When King Taksin established Thonburi as his capital following the fall of Ayutthaya in 1767, the Portuguese communities of Ayutthaya resettled in two areas of present-day Bangkok. Some followed the leadership of Father Jacques Corre, and settled on the west bank of the Chao Phraya River in the area now known as Kudi Chin where the Santa Cruz Church was soon established. Another faction, who had refused to accept the authority of the French Mission, settled on the eastern bank in an area now known as Talat Noi within Samphanthawong District. The latter brought with them two holy images: one of Our Lady of the Rosary, and the other of the Corpse of Christ. But without resident priests, they had no choice but to worship at Santa Cruz.

A church was first built at the site in 1787. It was a stilted wooden structure. The residents, however, still had to rely on French priests, whom they gradually accepted. In 1822, the church finally established communion with the Holy See, coming under the authority of Bishop Esprit-Marie-Joseph Florens, the Vicar Apostolic of Siam. By then, the Portuguese community was gradually dispersing, and Chinese immigrants soon became the church's main attendees.

In 1838, a new church building, of wood on a masonry base, was built to replace the old damaged structure. It was consecrated on 1 October 1839, and formally dedicated to Our Lady of the Rosary. By 1890, the structure had fallen into disrepair, and the pastor, Father Desalles, arranged for the construction of a new building. Construction took place from 1891 to 1897; the new church was consecrated in October 1897, and remains in operation.