Question: Who is Alexander Stewart, 4Th High Steward Of Scotland's paternal grandfather?

Knowledge 1: Alexander Stewart, 4th High Steward of Scotland
Alexander Stewart (died 1283), also known as Alexander of Dundonald, was 4th hereditary High Steward of Scotland from his father's death in 1246.A son of Walter Stewart, 3rd High Steward of Scotland by his wife Bethóc, daughter of Gille Críst, Earl of Angus, Alexander is said to have accompanied Louis IX of France on the Seventh Crusade (1248–1254).In 1255 he was one of the councillors of King Alexander III, though under age.He was the principal commander under King Alexander III of Scotland at the Battle of Largs, on 2 October 1263, when the Scots defeated the Norwegians under Haakon IV.The Scots invaded and conquered the Isle of Man the following year, which was, with the whole of the Western Isles, then annexed to the Crown of Scotland. [SEP] Knowledge 2: Walter Stewart, 3rd High Steward of Scotland
Walter Steward of Dundonald (died 1246) was 3rd hereditary High Steward of Scotland and Justiciar of Scotia.He was the eldest son of Alan fitz Walter, 2nd High Steward of Scotland but which wife of Alan's was his mother is not clear.He was the first to use Stewart as a surname, and was designated "of Dundonald".He witnessed a charter by King Alexander II, under the designation of "Walterus filius Alani, Senescallus, Justiciar Scotiae" and it may be that seal which Nisbet described pertaining to Walter Hereditary High Steward of Scotland.Around the seal it states "Sigill.Walteri filii Allani".
Knowledge 1: Alexander Stewart, 4th High Steward of Scotland
Alexander Stewart (died 1283), also known as Alexander of Dundonald, was 4th hereditary High Steward of Scotland from his father's death in 1246.A son of Walter Stewart, 3rd High Steward of Scotland by his wife Bethóc, daughter of Gille Críst, Earl of Angus, Alexander is said to have accompanied Louis IX of France on the Seventh Crusade (1248–1254).In 1255 he was one of the councillors of King Alexander III, though under age.He was the principal commander under King Alexander III of Scotland at the Battle of Largs, on 2 October 1263, when the Scots defeated the Norwegians under Haakon IV.The Scots invaded and conquered the Isle of Man the following year, which was, with the whole of the Western Isles, then annexed to the Crown of Scotland. [SEP] Knowledge 2: Alexander Stewart (mayor)
Alexander Stewart was a Canadian politician, who was the mayor of Victoria, British Columbia from 1914 to 1916.
Knowledge 1: Alexander Stewart, 4th High Steward of Scotland
Alexander Stewart (died 1283), also known as Alexander of Dundonald, was 4th hereditary High Steward of Scotland from his father's death in 1246.A son of Walter Stewart, 3rd High Steward of Scotland by his wife Bethóc, daughter of Gille Críst, Earl of Angus, Alexander is said to have accompanied Louis IX of France on the Seventh Crusade (1248–1254).In 1255 he was one of the councillors of King Alexander III, though under age.He was the principal commander under King Alexander III of Scotland at the Battle of Largs, on 2 October 1263, when the Scots defeated the Norwegians under Haakon IV.The Scots invaded and conquered the Isle of Man the following year, which was, with the whole of the Western Isles, then annexed to the Crown of Scotland. [SEP] Knowledge 2: John Stewart, 1st Earl of Angus
John Stewart, 1st Earl of Angus, Lord of Bonkyl, "jure uxoris" Lord of Abernethy (died 9 December 1331) was a medieval Scottish nobleman.Stewart was the son of Sir Alexander Stewart of Bonkyll, great-grandson of Alexander Stewart, 4th High Steward of Scotland, and Jean Fitz James, daughter of Alexander Fitz James.Sir Alexander died around 1319, and Stewart inherited his father's estates in Berwickshire, centered upon the barony of Bonkyll and Preston.In 1328, he married Margaret de Abernethy, heiress to the Lordship of Abernethy.Her father Sir Alexander de Abernethy was the last of the Gaelic lords of Abernethy, descendants of Gille Míchéil, Earl of Fife.Stewart assumed his wife's titles, and was further ennobled by Robert I of Scotland in 1329, being created Earl of Angus.The Earldom of Angus had been forfeited by the previous holder, Robert de Umfreville, before 1314, for choosing the losing side during the Wars of Scottish Independence, although he continued to style himself Earl until his death in 1325.It is through John Stewart's granddaughter, Margaret's illicit relationship with William Douglas, 1st Earl of Douglas, that the Earldom of Angus, Lordship of Abernethy, and the "comitatus" associated with it passed on to the Douglases in the person of George Douglas (the first "Red" Douglas).This close connection of the Douglas Earls of Angus with the House of Stewart was to have large implications for the latter's future struggles with the Black Douglases.Stewart was knighted on 24 November 1331 on the coronation of King David II, but died just two weeks later.He was succeeded by his son Thomas Stewart, 2nd Earl of Angus.

Answer: Alan fitz Walter