Question: The Battle of Verneuil included a Scottish army led by which warlord who is sometimes given the epithet of "loser"?

Context articles: Ma Chao
Archibald Douglas, 4th Earl of Douglas
Battle of Inverkeithing
Halidon Hill
Battle of the Standard
Battle of Newburn
Pang De
Archibald Douglas (died 1333)
Battle of the Herrings
Battle of Verneuil

Ma Chao (176–222), courtesy name Mengqi, was a military general and warlord who lived in the late Eastern Han dynasty and early Three Kingdoms period.
 A descendant of the general Ma Yuan, Ma Chao was the eldest son of Ma Teng, a prominent warlord in Liang Province (covering parts of northwestern China).
 In 211, he formed a coalition with Han Sui and other northwestern warlords and revolted against the Han central government, which was led by the warlord Cao Cao.
 The coalition broke up after losing the Battle of Tong Pass against Cao Cao's forces.
 Ma Chao initially retreated, but later returned to attack and seize control of Liang Province by killing the provincial inspector Wei Kang and forcing Wei Kang's subordinates to submit to him.
 About a year after Ma Chao started his uprising, Emperor Xian issued an imperial decree ordering the execution of Ma Chao's family members, who were in Ye city at the time.
 In the meantime, Wei Kang's subordinates, led by Zhao Ang, Yang Fu and others, rebelled against Ma Chao and forced him out of Liang Province.
 Ma Chao retreated to Hanzhong Commandery, where he borrowed troops from the warlord Zhang Lu, and returned to attack Liang Province but was ultimately defeated and driven back.
 Ma Chao took shelter under Zhang Lu for a while until around 214, when he heard that the warlord Liu Bei was fighting for control over Yi Province (covering present-day Sichuan and Chongqing) with Yi Province's governor, Liu Zhang.
 He defected to Liu Bei's side and assisted Liu Bei in capturing Yi Province from Liu Zhang.
 Ma Chao had served as a general under Liu Bei since then and participated in the Hanzhong Campaign in 219.
 He died in 222.
Archibald Douglas, Duke of Touraine, Earl of Douglas, Earl of Wigtown, Lord of Annandale, Lord of Galloway, Lord of Bothwell, and 13th Lord of Douglas (1372–17 August 1424), was a Scottish nobleman and warlord.
 He is sometimes given the epithet "Tyneman" (Old Scots: Loser), but this may be a reference to his great-uncle Sir Archibald Douglas.
The Battle of Inverkeithing was a battle of the Wars of the Three Kingdoms.
 It was fought on 20 July 1651 between an English Parliamentarian army under John Lambert and a Scottish Covenanter army acting on behalf of Charles II, led by Sir John Brown of Fordell.
 Lambert's force was a seaborne expedition landed at Fife to get around the main Scottish position at Stirling.
 The battle resulted in a decisive English victory that gave Oliver Cromwell's forces control of the Firth of Forth and outflanked the defensive position of the main Scottish Army under David Leslie.
Halidon Hill is a summit, about 2 mi west of the centre of Berwick-upon-Tweed, on the border of England and Scotland.
 It reaches 600 feet (180 m) high.
 The name of the hill indicates that it once had a fortification on its top.
 At the Battle of Halidon Hill in 1333, Edward III of England used longbowmen on the heights of the hill to defeat the Scottish army led by Archibald the "Tyneman" Douglas, Regent of Scotland.
The Battle of the Standard, sometimes called the Battle of Northallerton, in which English forces repelled a Scottish army, took place on 22 August 1138 on Cowton Moor near Northallerton in Yorkshire.
 The Scottish forces were led by King David I of Scotland.
 The English were commanded by William of Aumale.
The Battle of Newburn, sometimes known as Newburn Ford, was fought on 28 August 1640 during the Second Bishops' War between a Scottish Covenanter army led by General Alexander Leslie and English forces commanded by Edward, Lord Conway.
 Conway, heavily outnumbered, was defeated, and the Scots went on to occupy the town of Newcastle, obtaining a stranglehold on London's coal supply.
 Charles I had no choice but to agree on October 26 to the Treaty of Ripon, under which the Scottish army in northern England would be paid daily expenses, pending a final treaty of peace.
 To raise the necessary funds Charles had to call the Long Parliament, thus setting in motion a process that would lead to the outbreak of the English Civil War two years later.
Pang De (died 219), courtesy name Lingming, was a military general who lived in the late Eastern Han dynasty.
 He started his career under the warlord Ma Teng, who was based in Liang Province.
 In 211, Ma Teng's son Ma Chao, along with a coalition of warlords from Liang Province, started a rebellion against the Han central government, which was controlled by the warlord Cao Cao.
 After Cao Cao defeated Ma Chao and the coalition at the Battle of Tong Pass, Ma Chao fled to Hanzhong Commandery and took shelter under the warlord Zhang Lu.
 Pang De accompanied him to Hanzhong.
 When Ma Chao defected from Zhang Lu's side to another warlord Liu Bei, Pang De remained in Hanzhong and eventually came to serve Cao Cao after Cao Cao defeated Zhang Lu at the Battle of Yangping and took over Hanzhong.
 In 219, Pang De fought at the Battle of Fancheng under Cao Ren's command against Liu Bei's forces led by Guan Yu.
 Pang De was captured in battle and eventually executed by Guan Yu when he refused to surrender.
Sir Archibald Douglas (before 1298 – 19 July 1333) was a Scottish nobleman, Guardian of Scotland, and military leader.
 He is sometimes given the epithet "Tyneman" (Old Scots: Loser), but this may be a reference to his great-nephew Archibald Douglas, 4th Earl of Douglas.
The Battle of the Herrings was a military action near the town of Rouvray in France, just north of Orléans, which took place on 12 February 1429 during the siege of Orléans.
 The immediate cause of the battle was an attempt by French forces, led by Charles of Bourbon, Count of Clermont, to intercept and divert a supply convoy headed for English forces.
 The English had been laying siege to the town of Orléans since the previous October.
 The French were assisted by a Scottish force led by the Constable of the Scottish army, Sir John Stewart of Darnley.
 There are two places called Rouvray in the region in question.
 In his biography of Sir John Fastolf, Stephen Cooper gives reasons why the battle probably took place near Rouvray-Sainte-Croix, rather than Rouvray-Saint-Denis.
The Battle of Verneuil was a strategically important battle of the Hundred Years' War, fought on 17 August 1424 near Verneuil in Normandy and a significant English victory.
 It was a particularly bloody battle, described by the English as a second Agincourt.
 Altogether some 7262 French and allied troops were killed, including 4000 Scots.
 English losses were 1600, including two men-at-arms and "a very few archers".
 The Scots army, led by Archibald, Earl of Douglas and John Stewart, Earl of Buchan (both of whom were killed), was almost destroyed.
 Many French noblemen were taken prisoner; among them the Duke of Alençon, Pierre, the bastard of Alençon, and Marshal de La Fayette.
 After Verneuil, the English were able to consolidate their position in Normandy.
 The Army of Scotland as a distinct unit ceased to play a significant part in the Hundred Years' War, although many Scots continued to serve in France.