Question:  Loudoun Kirk is a disused church located about one mile west of a castle from which century ?

Context paragraphs:
Keokuk Falls, Oklahoma: Keokuk Falls is a ghost town in Pottawatomie County, Oklahoma.  The location is 4.5 miles north and 15 miles east of Shawnee.  and one mile west of the Creek Nation and one mile north of the Seminole Nation across the North Canadian River.  It was named after Chief Moses Keokuk (1821-1908).  He is buried in Stroud, Oklahoma's Sac and Fox cemetery.

Kalkun Cay, United States Virgin Islands: Kalkun Cay is a rocky, steep and narrow islet, located in the middle of the Savana Passage in the United States Virgin Islands.  It is one mile northeast of Savana Island and one mile west of West Point on the island of Saint Thomas.  Kalkun Cay is 73 feet high and covered with underbrush and grass.  It is an important habitat of native seabirds.

Loudoun Kirk: Loudoun Kirk is a disused church located about one mile west of Loudoun Castle, East Ayrshire.  It served as Loudoun's parish church until some point after 1600, when this function moved to the church in nearby Newmilns.  It subsequently fell into a state of disrepair, however since 1994 has been preserved by a local charity, "Friends Of Loudoun Kirk".

Our Savior's Scandinavian Lutheran Church: Our Savior's Scandinavian Lutheran Church, also known as Our Savior's Lutheran Church or Our Savior's Evangelical Lutheran Church is located in Ward County, North Dakota .  It is situated one mile north of State Route #50 and one quarter mile west of Ward County Highway #1 near Coulee, Mountrail County, North Dakota.  The church and its cemetery were listed on the National Register of Historic Places in 2005.

Dornock: Dornock is a small Scottish village in Dumfries and Galloway, situated about one mile west of Eastriggs and two miles east of Annan.  Dornock is built on land which is 10 to 20 metres above sea level.  Dornock Burn runs east of the village and the railway between Annan and Gretna is north of the village.  The mud and sand banks of the Solway Firth are less than one mile away to the south.

Cedar Creek (Missouri River): Cedar Creek is a stream in Boone and Callaway counties of the U.S. state of Missouri.  It is a tributary of the Missouri River.  The headwaters of Cedar Creek are in northeast Boone County about five miles east of Hallsville and one mile west of the Audrain-Boone county line.  The stream flows south and about five miles south of its headwaters the stream becomes the boundary between Boone and Callaway counties.  The stream crosses under Interstate 70 about eight miles east of Columbia and enters the Mark Twain National Forest.  The stream flows south to southwest through the national forest and upon leaving the forest turns to the east and ceases to be the county line.  The stream flows east for about one mile then turns south and flows under U. S. Route 63 and into the Missouri River four miles northwest of Cedar City and across the river from Jefferson City.  The Katy Trail crosses Cedar Creek just north of its confluence with the Missouri.

Somerton Castle: Somerton Castle is located approximately one mile west of the village of Boothby Graffoe in Lincolnshire, England and to the south of the city of Lincoln, England.  The site is on low-lying land between the Lincoln Edge and the River Trent.  Although Somerton Castle is in the parish of Boothby Graffoe, it is in the Manor of Waddington and this portion is often referred to as the "Manor of Somerton Castle".  Antony Bek probably built the castle in 1281 and he gave it to King Edward II in 1309.  King John II of France was imprisoned at Somerton Castle between 1359 and 1360, having been taken prisoner after the Battle of Poitiers.  It continued as crown property until it was sold by Charles I in 1628, since when the castle has continued in private ownership.

Loudoun Castle: Loudoun Castle is a ruined 19th-century country house near Galston, in the Loudoun area of Ayrshire, Scotland.  The ruins are protected as a category A listed building.

St. Mary's Cathedral, Arthat: Arthat St Mary's Orthodox Cathedral aka Arthat Valiyapally also called Paloor-Chattukulangara Church is an ancient church located in Arthat village of Thalapilly Taluk, one mile south of Kunnamkulam town, Thrissur, Kerala, India.  This church is also known as Chattukulangara pally.  It is believed that this church is the most ancient church in this region and is one of the Seven and Half church founded by St Thomas Apostle in AD 52. It should be noted that this church did not participate in the Synod of Diamper.  During the invasion of Tippu Sultan the church was arsoned and later reconstructed.

Logan, Greene County, Missouri: Logan is a small unincorporated community in southeastern Greene County, Missouri, United States.  It is located five miles (8 km) west of Rogersville and is not located on a highway.  It is one mile north of U.S. Route 60 and one mile west of Route 125.  Numerous homes and a school are located there.  Originally, Logan's school district was separate from nearby Rogersville's and the two eventually merged, giving its name to both the school district and the fire district which covers the area.  Mail is served by Rogersville.

Supporting paragraphs: Loudoun Kirk Loudoun Castle
Answer: 19th-century