| Abbreviation | Order of the Most Holy Annunciation (O.SS.A.) |
|---|---|
| Formation | 17th century |
| Type | Roman Catholic religious order |
| Headquarters | Ordine della Santissima Annunziata Via Pietro Dellepiane 49, San Cipriano di Serra Riccò, 16010, Genova (Italia) |
| Website | www.monacheordineannunziataceleste.it |

TheOrder of the Most Holy Annunciation (OMHA)[1] (Latin:Ordo Sanctissimae Annuntiationis), also known as theTurchine orBlue Nuns, as well as theCelestine Nuns, is aRoman Catholic religious order of contemplativenuns formed atGenoa,Italy, by BlessedMaria Vittoria De Fornari Strata in honour of the mystery of theIncarnation of Christ .[2]
Pope Clement VIII approved the religious order on 5 August 1604, placing it under theRule of Saint Augustine. In 1676 the Venerable Princess Donna Camilla Orsini Borghese founded a convent on theEsquiline Hill near theBasilica of Saint Mary Major.
After the convent was sequestered by the state in 1873, their church,it:Chiesa di Santa Maria Annunziata delle Turchine, became part of a military establishment making uniforms for the army.[3] The nuns moved to various locations before settling at a convent in the Via Portuense.[4]
The nuns take solemn vows of chastity, poverty, obedience, and enclosure. Their prayer life includes theLiturgy of the Hours. Some nuns engage in sewing vestments and religious habits to provide the necessary support for the community.
The religious order currently has monasteries inPortugal (Fatima), inItaly, and in thePhilippines.