Question: Dubhghall mac Suibhne was a prominent 13th-century noble, the Earl of Menteith also obtained Lochranza Castle, an L-plan tower house situated on a promontory in Lochranza, on the north of the Isle of Arran, in which country?

full_context: Document 1: Fetteresso Castle: Fetteresso Castle is a 14th-century towerhouse, rebuilt in 1761 as a Scottish gothic style Palladian manor, with clear evidence of prehistoric use of the site. It is situated immediately west of the town of Stonehaven in Kincardineshire slightly to the west of the A90 dual carriageway. Other notable historic fortified houses or castles in this region are Dunnottar Castle, Muchalls Castle, Fiddes Castle, Cowie Castle and Monboddo House.
Document 2: Dubhghall mac Suibhne: Dubhghall mac Suibhne was a prominent 13th-century noble. He was a son of Suibhne and was Lord of Knapdale. He held lands in Knapdale and in Kintyre. In 1262, he lost his lordship and lands to Walter Stewart, Earl of Menteith after Alexander III of Scotland granted Skipinnish, Killislate amongst other lands in Knapdale and the parish of Kilcalmonell in Kintyre. The Earl of Menteith also obtained Skipness Castle, Castle Sween and Lochranza Castle formerly controlled by Dubhghall.
Document 3: Murchadh Mac Suibhne: Murchadh Mac Suibhne (died 1267) was a prominent 13th-century noble. Murchadh was a son of Maol Mhuire an Sparáin, son of Suibhne, eponymous ancestor of the Clann Suibhne. Murchadh led the dispossessed clan pressed into King Hakon IV of Norway's service during King Hakon's 1263 expedition. Clann Suibhne were required to surrender hostages to King Hakon as guarantee for their support. Murchadh was granted Arran, however these lands were lost shortly after the Battle of Largs and he appears to have fled to Ireland. He was taken prisoner by Domnall Mac Maghnusa in 1265 and was imprisoned by Walter de Burgh, Earl of Ulster and died shortly afterwards.
Document 4: Tantallon Castle: Tantallon Castle is a semi-ruined mid-14th-century fortress, located 5 km east of North Berwick, in East Lothian, Scotland. It sits atop a promontory opposite the Bass Rock, looking out onto the Firth of Forth. The last medieval curtain wall castle to be constructed in Scotland, Tantallon comprises a single wall blocking off the headland, with the other three sides naturally protected by sea cliffs.
Document 5: Ardrossan Castle: Ardrossan Castle is situated on the west coast of Scotland in the town of Ardrossan, Ayrshire. The castle, defended by a moat, stands on a ridge above the town. There is a keep dating from the fifteenth century, and a vaulted range containing a kitchen and cellars. In a deep passageway there is a well. Part of the keep remains up to the corbels of the parapet, but it is in ruins. The original castle, owned by Clan Barclay, was partly destroyed during the Wars of Scottish Independence. This event, in which the English garrison were slaughtered, became known as "Wallace's Larder," a name which is still applied to the remaining vaults. Rebuilt by Clan Montgomery in the 15th century, Ardrossan later fell into disuse and was partially demolished by the soldiers of Oliver Cromwell in the 17th century who used the stones to help construct the Ayr Citadel.
Document 6: Ruadhri of Bute: Ruadhri is an obscure 13th-century noble, who claimed the Isle of Bute through hereditary descent. Outlawed by King Alexander III of Scotland, because of attacks against Scottish lands, which he had undertaken as a result of him being denied his declared patrimony to the Isle of Bute through his hereditary right. When King Hakon IV of Norway began his 1263 expedition against Scotland, Ruadhri presented himself to Hakon and swore fealty to the King of Norway. He was allowed to participate in the attack on Bute, as part of the campaign, with Rothesay Castle surrendering. He took revenge on the garrison killing nine upon their retreat. He was granted the Isle of Bute by King Hakon, however he disappears from contemporary records shortly afterwards.
Document 7: Loch Leven Castle: Loch Leven Castle is a ruined castle on an island in Loch Leven, in the Perth and Kinross local authority area of Scotland. Possibly built around 1300, the castle was the location of military action during the Wars of Scottish Independence (1296–1357). In the latter part of the 14th century, the castle was granted by his uncle to William Douglas, 1st Earl of Douglas, and remained in Douglas' hands for the next 300 years. Mary, Queen of Scots was imprisoned here in 1567–1568, and forced to abdicate as queen, before escaping with the help of her gaoler's family. In 1588, the Queen's gaoler inherited the title Earl of Morton, and moved away from the castle. It was bought, in 1675, by Sir William Bruce, who used the castle as a focal point in his garden; it was never again used as a residence.
Document 8: Artúr Dall Mac Gurcaigh: Artúr Dall Mac Gurcaigh was a Scottish poet. He was the author of "Dál chabhlaigh ar Chaistéal Suibhne" ("An arranging of a fleet against Castle Sween"), written c. 1310 during the Wars of Scottish Independence. The poem is one of the few Scottish vernacular poems before the mid-14th century, and tells of Eoin mac Suibhne, enemy of King Robert I of Scotland, and head of "Clann Suibhne" (the MacSweens) - a clan who would be expelled from Scotland and flourish as a mercenary clan in Ireland.
Document 9: Dunderave Castle: Dunderave Castle is an L-plan castle built in the 16th century as the Scottish seat of the MacNaughton clan. The castle lies on a small promontory on the northern shores of Loch Fyne, around 5 km north-east of Inveraray, Argyll. The castle is in use as a residence. The present castle was built after their previous castle was destroyed following a Plague infection. The old castle, and remnants of McNaughton crannógs, can still be seen on the lochan known as the Dubh Loch at the head of Glen Shira.
Document 10: Suibhne mac Duinnshléibhe: Suibhne mac Duinnshléibhe was a late 12th-century, and early 13th-century, lord in Argyll. He does not appear in contemporary records, although his name appears in the patronymic names of two of his sons. Suibhne appears in the 16th century "Leabhar Chlainne Suibhne", which documents the early history of Clann Suibhne. This account claims that he is the ancestor of Irish clan, and that he was the builder of Castle Sween in Knapdale, Argyll. Suibhne is said to be identical to the "Swineruo", or "Suibhne Ruadh" ("Suibhne the Red"), recorded in the "Ane Accompt of the Genealogie of the Campbells", a 17th-century Clan Campbell genealogy.
Document 11: Dunluce Castle: Dunluce Castle (from Irish: "Dún Libhse" ) is a now-ruined medieval castle in Northern Ireland. It is located on the edge of a basalt outcropping in County Antrim (between Portballintrae and Portrush), and is accessible via a bridge connecting it to the mainland. The castle is surrounded by extremely steep drops on either side, which may have been an important factor to the early Christians and Vikings who were drawn to this place where an early Irish fort once stood.
Document 12: Lochranza Castle: Lochranza Castle is an L-plan tower house situated on a promontory in Lochranza, on the north of the Isle of Arran in Scotland. Most of the castle was built in the 16th century.
Document 13: Breachacha Castle: Breachacha Castle (also spelled Breacachadh) is either of two structures on the shore of Loch Breachacha, on the Inner Hebridean island of Coll, Scotland. The earlier (also called Old Breachacha Castle) is a 15th-century tower house that was a stronghold of the Macleans of Coll, the island having been granted to John Maclean in 1431. This castle was superseded by a new dwelling in 1750 (see below) but continued to be occupied for a time, falling into a ruinous state only in the mid-19th century. Although work was performed in the 1930s to prevent further dilapidation, the castle was restored to livable condition only in the 1960s, by Major Neil V. MacLean Bristol and his wife Lavinia. It is a Category A listed building.
Document 14: Caerlaverock Castle: Caerlaverock Castle (from "caer laverock", "lark castle") is a moated triangular castle first built in the 13th century. It is located on the southern coast of Scotland, 11 km south of Dumfries, on the edge of the Caerlaverock National Nature Reserve. Caerlaverock was a stronghold of the Maxwell family from the 13th century until the 17th century when the castle was abandoned. It was besieged by the English during the Wars of Scottish Independence, and underwent several partial demolitions and reconstructions over the 14th and 15th centuries. In the 17th century, the Maxwells were created Earls of Nithsdale, and built a new lodging within the walls, described as among "the most ambitious early classical domestic architecture in Scotland". In 1640 the castle was besieged for the last time and was subsequently abandoned. Although demolished and rebuilt several times, the castle retains the distinctive triangular plan first laid out in the 13th century. Caerlaverock Castle was built to control trade in early times.
Document 15: Donnchadh of Argyll: Donnchadh of Argyll or Donnchadh mac Dubhghaill (Anglicized: "Duncan, son of Dougall") was a late 12th and early 13th century Scottish noble. He was the son of Dubhghall mac Somhairle, son of Somhairle mac Gille Bhrighde. He is the first of the MacDougall lords of Argyll to take the title "de Argadia", and can be regarded as the founder of the successful MacDougall lordship of Argyll. He was also a prominent builder, notable for his construction of Ardchattan Priory and Dunstaffnage Castle.
ground_truth: Scotland