Question: In what William Shakespeare play does the Third Murderer kill a figure in legendary Scottish history?

Context articles: Fleance
Into the Gauntlet
Dauvit Broun
Third Murderer
Scáthach
Thomas J. King Jr.
Michael Lynch (historian)
Edward J. Cowan
Innes Review
Let's kill all the lawyers (disambiguation)

Fleance (or Fléance) is a figure in legendary Scottish history.
 He was depicted by 16th-century historians as the son of Lord Banquo, Thane of Lochaber, and the ancestor of the kings of the House of Stuart.
 Fleance is best known as a character in William Shakespeare's play "Macbeth", in which the Three Witches prophesy that Banquo's descendants shall be kings.
 Some screen adaptations of the story expand on Fleance's role by showing his return to the kingdom after Macbeth's death.
Into the Gauntlet is the tenth book in "The 39 Clues" novel series.
 It was written by Margaret Peterson Haddix and released on August 31, 2010.
 In the beginning of the book, Amy and Dan are now at the end of their clue hunt, and every misfortune they've had.
 Their lead is a poem found in their hotel room.
 However, it is then stolen by Isabel Kabra.
 It is revealed that William Shakespeare was a powerful Madrigal and the most important clue is on the line against their competitors.
 Dan and Amy are supposed to go to the Globe theater to watch a Shakespeare play, "Romeo and Julliet".
 While watching the show they see what looks to be ninjas.
 The ninjas find a clue at the top of the theater but drop it into the hands of Dan and Amy.
 As it turns out the whole Cahill family is at the play looking for the clue.
 Backstage of the play the fight over the paper found at the theater.
 Mr. McIntyre and Fiske Cahill reveal there is another family out there that makes Isabel Kabra look like Mother Teresa.
 The globe on the 39 Clues symbol is, unlike in the first nine books, shattered into pieces.
Dauvit Broun, FBA (English: David Brown ) (born 1961) is a Scottish historian and academic.
 He is the Professor of Scottish History at the University of Glasgow.
 A specialist in medieval Scottish and Celtic studies, he concentrates primarily on early medieval Scotland, and has written abundantly on the topic of early Scottish king-lists, as well as on literacy, charter-writing, national identity, and on the text known as "de Situ Albanie".
 He is editor of the "New Edinburgh History of Scotland" series, the pre-1603 editor of the "Scottish Historical Review", convener of the Scottish History Society, and the Principal Investigator of the Arts and Humanities Research Council-funded project 'The Paradox of Medieval Scotland, 1093-1286'.
The Third Murderer is a character in William Shakespeare's tragedy "Macbeth" (1606).
 He appears in one scene (3.3), joining the First and Second Murderers to assassinate Banquo and Fleance, at the orders of Macbeth.
Scáthach (Scottish Gaelic: "Sgàthach an Eilean Sgitheanach" ), or "Sgathaich", is a figure in the Ulster Cycle of Irish mythology.
 She is a legendary Scottish warrior woman and martial arts teacher who trains the legendary Ulster hero Cú Chulainn in the arts of combat.
 Texts describe her homeland as Scotland ("Alpeach"); she is especially associated with the Isle of Skye, where her residence "Dún Scáith", or "Dun Sgathaich" (Fortress of Shadows), stands.
 She is called "the Shadow" and "Warrior Maid" and is the rival and sister of Aífe, both daughters of Árd-Greimne of Lethra.
Professor Thomas J. King Jr. (July 25, 1925 – 1994) was an educator, and an early user of word processing and sequence analysis to compare available early versions of William Shakespeare's plays for identification of variant texts and their analysis.
 Dr. King's historical work also researched original prompt copies of Elizabethan Era and Jacobean Era plays contemporary to Shakespeare, along with their marginalia, in order to identify stage directions and infer physical staging of Shakespeare's plays at the Globe and other London venues, as well as at provincial halls and inns where Elizabethan troupes performed on tour.
 In his extensive studies, Prof. King created databases of every Shakespeare play and other extant Elizabethan contemporary playhouse documents, by scene and character, to determine number of lines, and therefore the roles that could be doubled with sufficient time between for costume change, thus enabling him to determine the size of a working Elizabethan theater company.
Lynch was born in Aberdeen.
 He was educated at Aberdeen Grammar School before taking degrees at the University of Aberdeen and the University of London.
 His first academic post was a lectureship in the history department at University College, Bangor (now Bangor University) from 1971-1979.
 From there he took up a lectureship in the Scottish history department at the University of Edinburgh, where, in 1993, he was appointed Sir William Fraser Professor of Scottish History and Palaeography, holding this Chair—the oldest and most distinguished Scottish history professorship in the world—until his retirement in 2005.
 As Professor he served as chairman of the Ancient Monuments Board for Scotland (1996-2002), president of the Society of Antiquaries of Scotland (1996-1999), and a trustee of the National Museum of Scotland (2002-2005).
Edward J. Cowan FRSE is a Scottish historian.
 He is Director of the University of Glasgow's Dumfries Campus and Professor of Scottish History and Literature.
 His main research interests are with the history of Viking Scotland, the Scottish Wars of Independence, Early Modern Scottish Political Thought, the Covenanters, Scottish Emigration history and the Scots in the Arctic and Pacific North West.
The Innes Review is a biannual academic journal, published by Edinburgh University Press on behalf of the Scottish Catholic Historical Association in May and November of each year.
 It was founded in 1950 and covers the part played by the Catholic Church in Scottish history.
 It includes all aspects of Scottish history and culture, especially ones related to religious history.
"Let's kill all the lawyers" is a quotation from the William Shakespeare play "Henry VI, Part 2".
 It may also refer to: