Title: John of Scotland, Earl of Huntingdon
Content:  John of Scotland (or John de Scotia or John le Scot), 9th Earl of Huntingdon and 7th Earl of Chester (c. 1207 – 6 June 1237), sometimes known as "the Scot", was an Anglo-Scottish magnate, the son of David of Scotland, Earl of Huntingdon by his wife Matilda of Chester, daughter of Hugh de Kevelioc. John married Elen ferch Llywelyn, daughter of Llywelyn the Great, in about 1222. John became Earl of Huntingdon in 1219 on the death of his father. On the death of John's maternal uncle, Ranulph de Blondeville, Earl of Chester, on 26 October 1232, the Earldom 
Title: Joan of England, Queen of Scotland
Content:  Joan of England (22 July 1210 – 4 March 1238), was Queen consort of Scotland from 1221 until her death. She was the third child of John, King of England and Isabella of Angoulême.
Title: John of Islay, Lord of the Isles
Content:  and all of the western seaboard from Morvern to Loch Hourn. John continued to build his power-base by allying himself with Robert II of Scotland, another west highland magnate who was the designated heir of King David. After David went into English custody in 1346, Robert acted as the de facto ruler of Scotland north of the River Forth. In 1350, John was given Robert's daughter Margaret Stewart in marriage, and received Knapdale and Kintyre as dowry. However, Robert was the senior partner, and John had to divorce his first wife Amie; his sons Godfrey, John and Ranald by Amie were to be passed over in 
Title: John I, Count of Penthièvre
Content:  John was born in Jugon-les-Lacs in Brittany while his parents, Joan, Duchess of Brittany (and Countess of Penthièvre) and Charles of Blois, Duke of Brittany, ruled over the Duchy of Brittany. His mother Joan arranged to marry John to Margaret of Windsor, daughter of King Edward III of England, but Henry of Grosmont, 1st Duke of Lancaster, an ally of the Montforts, broke off the negotiations. Edward III thus offered instead his granddaughter Philippa of Lancaster as a wife, but John's mother declined that offer. In 1356, John was given to the English as a hostage and he was held at Gloucester Castle under the care of Robert de Vere, Duke of Ireland and Early of Oxford, for nearly twenty-five years. On the death 
Title: John of Sutherland
Content:  John of Sutherland, also known as John, Master of Sutherland, or John Sutherland, (born 1344 and died 1361) was a member of the Scottish nobility. John of Sutherland was the only son of William de Moravia, 5th Earl of Sutherland and Margaret Bruce, daughter of Robert the Bruce (Robert I of Scotland). 14th century chronicler, John of Fordun, states that John of Sutherland's mother Margaret Bruce died after giving birth to him. This is supported by Andrew of Wyntoun whose chronicle was finished between 1420 and 1424. While aged only six or seven, John of Sutherland was used as a hostage for his uncle, David II of 
Title: John MacLeod (clan chief)
Content:  John's daughter and heiress married Domhnall 'gorme' of Sleat, the son and successor of Domhnall 'gruamach'.
Title: John of Argyll
Content:  Canterbury. He left the Galwegian "Dungal MacDouall" (Dungall MacDubhgall), a fellow political exile from Scotland, in charge of his will. John left several sons and daughters, though his wife or wives are not known. Among his offspring known by name are:  He had another daughter who married one Patrick Graham. John's son Eóghan returned to Scotland with Edward Balliol's unsuccessful attempt at the Scottish throne in the 1330s. The MacDougalls re-emerged in Argyll in unknown circumstances later in the century. John's grandson, through Ailean, known as John Gallda ("the Foreigner"), is on record from 1338. Later, John Gallda was styling himself "Lord of Argyll".
Title: John, King of England
Content:   John was born on 24 December 1166. His father, King Henry II of England, had inherited significant territories along the Atlantic seaboard – Anjou, Normandy and England – and expanded his empire by conquering Brittany. John's powerful mother, Duchess Eleanor of Aquitaine, had a tenuous claim to Toulouse and Auvergne in southern France, and was the former wife of King Louis VII of France. The territories of Henry and Eleanor formed the Angevin Empire, named after Henry's paternal title as Count of Anjou and, more specifically, its seat in Angers. The Empire, however, was inherently fragile: although all the lands owed allegiance to Henry, the disparate parts each had their own histories, traditions and governance 
Title: Joan of the Tower
Content:  Joan of the Tower (5 July 1321 – 7 September 1362), daughter of Edward II of England and Isabella of France, was the queen of Scotland from 1329 to her death as the first wife of David II of Scotland.
Title: John of Argyll
Content: Ewen (Eóghan) ; Alan (Ailean) ; Somhairle ; Alexander (Alasdair) Óg ; Mary (Maire) The son of Alexander MacDougall (Alasdair MacDubhgall), Lord of Argyll, by a daughter of John I Comyn, Lord of Badenoch, John appears in the records in 1291 swearing fealty to Edward I of England. From his father's and mother's background, he inherited the pro-Baliol sympathies that determined his family's and his own activities during the Great Cause and the First War of Scottish Independence. As the Balliol stalwarts of the west, the Bruce heartland, the MacDougalls and Comyns of Badenoch eventually found themselves up against Bruce-backed MacDonalds, Campbells, the Menteiths, men 

Question: Who is the mother of John of Scotland?
Answer: Dervorguilla of Galloway.
Devorguilla de Galloway.