The formal name of Miyako no Nanban-ji is Seibo no Hishoten Kyokai (Assumption of Mary Church), and the consecrating mass was held on August 15, 1576 (the day of the Assumption) before the completion of the church.
都の南蛮寺の正式名は「聖母の被昇天教会」であり、献堂ミサも会堂の落成に先立つ1576年8月15日（聖母被昇天の祝日）に行われた。