Question: The village church of Derrybrien is dedicated to a fifth-century Romano-British Christian missionary known as what?

full_context: Document 1: Kilrea: Kilrea (pronounced , from Irish: "Cill Ria" , meaning "church on the hill" ) is a village, townland and civil parish in County Londonderry, Northern Ireland. It gets its name from St. Patrick's Church of Ireland, which sits on Church Street looking over the town. It is near the River Bann, which marks the boundary between County Londonderry and County Antrim. In the 2011 Census it had a population of 2,724 people. It is situated within Causeway Coast and Glens district.
Document 2: Laghy: Laghey or Laghy () is a small village in County Donegal, Ireland, between Ballintra and Donegal Town. Laghey is one of three villages that make up the parish of Drumholm, formerly a civil and Church of Ireland parish, now only used as a division of the Roman Catholic Diocese of Raphoe. The village has a quarry, a supermarket, garden centre, filling station, two public houses, a church with a graveyard, an Orange hall, a recycling centre, a Donegal County Council yard and salt depot, and a national school (St Eunan's NS). Laghey is also near two of the most scenic beaches in Ireland, namely Rossnowlagh and Murvagh. Murvagh is also the home to the Donegal Golf Club.
Document 3: Aghavrin: It is referred to as 'Aghrin' in the Down Survey Maps (1656-8), Aghawrinmore & Aghawrinbeg are listed as sub-denominations, and the terrier lists the proprietor as Lord Muskry (Muskerry). The Ordnance Survey name book ("c". 1840) gives an alternate Irish name of "Ath a buirinn" to the townland, also lists Ahavrinbeg and Ahavrinmore as sub-denominations, and describes the townland as the property of John Bowin (Bowen), Esq. of Oak Grove, and John Bowin Gumbleton, Esq. Its condition was said to be of mixed quality, principally cultivated, but containing some boggy land, rocks and furze. The townland was said to have several waterfalls to the south-west, and places included Bowing's (Bowen's) Pond, Good's Pond, Poulahourane (Waterfall), Poulanassig (Waterfall), Ahavrinmore, Ahavrieg, Ahavringrove, Ahavrin Castle (Crooke's Castle), Carrigacubbeen and Clashagorrave River. O'Donoghue (1986) holds Achadh Bhroin to mean Bron's field, and that Bron was father of Maolmuadh, king of Munster in 959, and grandfather of Cian. O'Murchú (1991) holds upon local authority that "Achadh Bhroin" may refer to Byrne's or Burns' field. The Placenames Database of Ireland gives an alternate Irish name of "Achadh Bhrain" to the townland.
Document 4: St. Mary's Collegiate Church Gowran: St. Mary’s Collegiate Church Gowran (Gaelic/Irish: Eaglais Mhuire), also known as the Church of the Blessed Virgin of the Assumption, is located in the centre of the town of Gowran, County Kilkenny, Ireland.The Church is located close to Gowran Castle The site is a National Monument in the care of the Gowran Development Association (GDA) and the Office of Public Works (OPW). The Church and its family connections have been of huge importance to Gowran and further afield over the centuries. The Church is called a Collegiate Church. The word Collegiate means that the priests or chaplains attached to it lived in community together. i.e. collegiately. The present church was not a monastery or an abbey. However experts believe the church was built on the site of an earlier monastery. The presence of an Ogham stone on the site, which is on display in the chancel, would suggest there was a place of worship here dating back 2000 years to Celtic times and beyond.
Document 5: Hiberno-Scottish mission: The Hiberno-Scottish mission was a series of missions and expeditions initiated by various Irish clerics and cleric-scholars who, for the most part, are not known to have acted in concert. There was no overall coordinated mission, but there were nevertheless sporadic missions initiated by Gaelic monks from Ireland and the western coast of modern-day Scotland, which contributed to the spread of Christianity and established monasteries in Britain and continental Europe during the Middle Ages. The earliest recorded Irish mission can be dated to 563 with the foundation of Iona by the Irish monk Saint Columba. Columba is said by Bede and Adamnán to have ministered to the Gaels of Dál Riada and converted the northern Pictish kingdoms. Over the next centuries more missions followed and spread through Anglo-Saxon England and the Frankish Empire. The early missions are often associated with the Christian practice known as Celtic Christianity, which was distinguished by its organizations around monasteries rather than dioceses and certain idiosyncratic traditions, but the desire to maintain a relationship with the Holy See saw their missions take on a more Roman character.
Document 6: Saint Ilid: Saint Ilid is a semi-legendary saint of Wales. He has at times been identified as Joseph of Arimathea, perhaps because he is referred to as a "man of Israel" and to have been born Jewish. Moreover, he is said to have returned from Rome with "Caratacus", Saint Cyllin and Eigen and formed a religious college of twelve named "Cor Eurgain" (the choir of Eurgain), suggesting the early entry of Christianity into Britain. He may be commemorated in the village Llanilid. According to Thomas Morgan, Llanilid follows the tradition of Welsh place names attached to a parish in taking its title from the saint to whom the local church is dedicated. In Llanilid the local church is St. Ilid & St Cruig's church, and Morgan states that this relates to Ilid a person who introduced Christianity to Wales in the 1st century. This research may be connected to that of famed literary forger Iolo Morganwg, who produced elaborate tales of Ilid going as far as stating that it was the Welsh names of Joseph of Arimathea. Morgan relates that "Llan" – "Ilid", refers to the 'parish of St Ilid'. This has been challenged by R. W. D. Fenn, who, after studying the "Book of Llandaff" and Nennius's "Historia Brittonum" writes in 1962 that the Latin equivalent of Ilid represents the name of a district, similar to Llandovery, and not a person. Fenn then writes that in 1566 Llanilid was dedicated to Ilid and Curig, whom he connects to the saints more commonly known in Christian tradition as Julietta and Quiricus. He links this through the Appendix of the "Book of Llandaff" which states that the church at Llanilid is first given as the 'Church of St Julitta'.
Document 7: Saint Ninian: Saint Ninian is a Christian saint first mentioned in the 8th century as being an early missionary among the Pictish peoples of what is now Scotland. For this reason he is known as the Apostle to the Southern Picts, and there are numerous dedications to him in those parts of Scotland with a Pictish heritage, throughout the Scottish Lowlands, and in parts of Northern England with a Northumbrian heritage. In Scotland, Ninian is also known as Ringan, and as Trynnian in Northern England.
Document 8: Saint Patrick: Saint Patrick (Latin: "Patricius" ; Irish: "Pádraig" ] ; Welsh: "Padrig" ) was a fifth-century Romano-British Christian missionary and bishop in Ireland. Known as the "Apostle of Ireland", he is the primary patron saint of Ireland, along with saints Brigit of Kildare and Columba. He is also venerated in the Anglican Communion, the Old Catholic Church and in the Eastern Orthodox Church as equal-to-the-apostles and "Enlightener of Ireland".
Document 9: Dungiven: Dungiven (from Irish: "Dún Geimhin" , meaning "Gevin's fort" ) is a small town, townland and civil parish in County Londonderry, Northern Ireland. It is on the main A6 Belfast to Derry road. It lies where the rivers Roe, Owenreagh and Owenbeg meet at the foot of the 1525 ft Benbradagh. Nearby is the Glenshane Pass, where the road rises to over 1000 ft . It had a population of 2,993 people in the 2001 Census, an increase of 6% over 1991. It is within Causeway Coast and Glens district.
Document 10: Saint Paternian: Paternian or Paternianus (Italian: "San Paterniano" ) is the name of an Italian saint. There are two figures, "Paternian of Bologna" and "Paternian of Fermo", who are considered to be the same person. The first was bishop of Bologna from around 450 to 470. The second was a native of Fermo who escaped to the mountains during the persecutions of Christians by Diocletian. He then became bishop of Fano after being appointed to this position by Pope Sylvester I.
Document 11: Derrybrien: Derrybrien is a tiny village in County Galway, Ireland. It lies along the R353 road in the Slieve Aughty Mountains. The village church is dedicated to Saint Patrick and is part of the Roman Catholic Parish of Ballinakill and Derrybrien. A 60MW wind farm with 70 turbines is located on a hill nearby.
Document 12: Killawalla: Killawalla or Killavally (Irish "Coill an Bhaile": Wood of the Homestead) is a village located in County Mayo, Ireland, 7 miles (10 km) from Westport on the R330 road to Ballinrobe. Saint Patrick is alleged to have passed this way en route to Croagh Patrick, and accordingly the local Catholic church is named after him. The village also contains a primary school, a post office and a pub. Killawalla is part of the parish of Carnacon and Ballintubber. Research carried out by NUI Maynooth showed Killawalla to have sustained the biggest population loss of any village in Ireland during the Great Famine. Between 1841 and 1851 the village lost two thirds of its population.
Document 13: St Patrick's College, Belfast: St Patrick’s College, Bearnageeha (Irish: "Coláiste Phádraig, Bearna na Gaoithe") is a Roman Catholic secondary school for boys aged between 11-19 situated on the Antrim Road, in Belfast, Northern Ireland. The college's catchment area encompasses the New Lodge, Ardoyne, the Antrim Road and various other areas of North Belfast. In the Autumn of 2006, St. Patrick's celebrated its golden jubilee. St Patrick's was the first Catholic secondary school in Belfast to offer A-Levels. The college is one of many schools and colleges throughout Ireland that has taken the name "St Patrick's", after the island's patron saint.
Document 14: St. Patrick's blue: St. Patrick's blue is a name applied to several shades of blue associated with Saint Patrick and Ireland. The colour blue's association with Saint Patrick dates from the 1780s, when it was adopted as the colour of the Anglo-Irish "Order of St. Patrick". In British usage, it refers to a sky blue used by the Order of St. Patrick, whereas in Irish usage it is often a dark, rich blue. While green is now the usual national colour of Ireland, St. Patrick's blue is still the official colour of state. St. Patrick's blue is still found in symbols of both the state and the island.
Document 15: Barna: Bearna (anglicized as Barna) is a Gaeltacht village in Connemara, west of Galway city in County Galway, Ireland, on the R336 regional road. Once a satellite of Galway city, the village is now rapidly becoming one of its suburbs. Officially the village is regarded as Irish speaking and is therefore a constituent part of the regions of Ireland that make up the Gaeltacht. However, because of its absorption into the city, it has recently become a mainly English speaking village. Nonetheless, Irish is still the main language of its western and northern hinterland and the village has now effectively become the gateway to the largest Irish speaking region in the country
ground_truth: Apostle of Ireland