Question: What is the name of the castle on the coast of Kirkoswald parich that Christina Bruce was born at?

Context paragraphs:
Findlater Castle: Findlater Castle is the old seat of the Earls of Findlater and Seafield, sitting on a 50 ft -high cliff overlooking the Moray Firth on the coast of Banff and Buchan, Aberdeenshire, Scotland.  It lies about 15 km west of Banff, near the village of Sandend, between Cullen and Portsoy.  The cliffs here contain quartz; the name "Findlater" is derived not from Norse as earlier stated here, but from the Scots Gaelic words "fionn" ("white") and "leitir" ("cliff or steep slope").  The first historical reference to the castle is from 1246.  King Alexander III of Scotland repaired this castle in the 1260s in preparation for an invasion by King Haakon IV of Norway.  The Vikings took and held the castle for some time.  The castle remains that are still there are from the 14th-century rebuilding, when the castle was redesigned based on the Roslyn Castle model.

Andrew Murray (Scottish soldier): Sir Andrew Murray (1298–1338), also known as Sir Andrew Moray, or Sir Andrew de Moray, was a Scottish military and political leader who supported David II of Scotland against Edward Balliol and King Edward III of England during the so-called Second War of Scottish Independence.  He held the lordships of Avoch and Petty in north Scotland, and Bothwell in west-central Scotland.  In 1326 he married Christina Bruce, a sister of King Robert I of Scotland.  Murray was twice chosen as Guardian of Scotland, first in 1332, and again from 1335 on his return to Scotland after his release from captivity in England.  He held the guardianship until his death in 1338.

Kirkoswald, South Ayrshire: Kirkoswald (Scots: "Kirkossald" ) is a village and parish in the Carrick district of Ayrshire, Scotland, 1¾ miles from the coast and four miles southwest of Maybole.  It takes its name from its "kirk" (church), dedicated to Oswald of Northumbria, who is said to have won a battle here in the 7th century.  The old church, which was built in 1244 and houses the baptismal font of Robert the Bruce, is now a ruin in the grounds of the modern church, which was built in 1777 to a design by Robert Adam.  Kirkoswald is also noted for its connection with Robert Burns, whose maternal ancestors, the Brouns, were from the village.  Burns also attended school here, and would later base the characters Tam o' Shanter, Kirkton Jean and Souter Johnnie on village locals Douglas Graham, John Davidson and Jean Aird.

Maidens: Maidens is a village in the Kirkoswald parish of Ayrshire, Scotland.  Situated on the coast of the Firth of Clyde at the southern end of Maidenhead Bay, a series of rocks known as the "Maidens of Turnberry" form a natural harbour.  The village lies two miles north of the ruinous Turnberry Castle, ancient seat of the Earls of Carrick, and five miles west of Maybole.  It formerly had its own railway station on the Maidens and Dunure Light Railway.  At 1991, Maidens had a population of 567.

Christina Parie: Christina Parie (born 10 February 1996), also known by her stage names KYA and Christina Castle, is an Australian singer and songwriter, best known as a finalist on the third season of "The X Factor Australia" in 2011.  She subsequently signed with Warner Music Australia and released her debut single "16 & Unstoppable" in July 2012.  Parie has since changed her artist name to KYA, releasing a single entitled "What I Live For" with LDN Noise in May 2014.

Rathlin Castle: Rathlin Castle, also known as "Bruce's Castle", was a castle on Rathlin Island off the coast of County Antrim in Northern Ireland.

Turnberry Castle: Turnberry Castle is a fragmentary ruin on the coast of Kirkoswald parish, near Maybole in Ayrshire, Scotland.  Situated at the extremity of the lower peninsula within the parish, it was the seat of the Earls of Carrick.  Turnberry Castle is adjacent to Turnberry Golf Course.

Princess Christina, Mrs. Magnuson: Princess Christina, Mrs. Magnuson, {'1': ", '2': ", '3': 'LoK av KMO', '4': "} ("Christina Louise Helena", born 3 August 1943) is the youngest of four older sisters of King Carl XVI Gustaf of Sweden.  She generally uses the name Christina Magnuson.

Warkworth Castle: Warkworth Castle is a ruined medieval building in the village of the same name in the English county of Northumberland.  The village and castle occupy a loop of the River Coquet, less than a mile from England's north-east coast.  When the castle was founded is uncertain: traditionally its construction has been ascribed to Prince Henry of Scotland in the mid-12th century, but it may have been built by King Henry II of England when he took control of England's northern counties.  Warkworth Castle was first documented in a charter of 1157–1164 when Henry II granted it to Roger fitz Richard.  The timber castle was considered "feeble", and was left undefended when the Scots invaded in 1173.

Christina Bruce: Christina Bruce (c. 1278 – 1356/1357), also known as Christina de Brus, was a daughter of Marjorie, Countess of Carrick, and her husband, Robert de Brus, "jure uxoris" Earl of Carrick, and a sister of Robert the Bruce, King of Scots.  It is presumed that she and her siblings were born at Turnberry Castle in Carrick.

Supporting paragraphs: Christina Bruce Turnberry Castle
Answer: Turnberry Castle