|Mac an Fheisdeir|
Crest: A demi griffin Proper, armed, beaked and winged Or
|The Right Honourable James|
|Earl of Rothes and Lord of Leslie|
|Historic seat||Leslie Castle|
Clan Chief, the Earl of Rothes
From 1457 the Clan Chief of Clan Leslie also held the position of Earl of Rothes. The Chief is currently the Hon. Alexander Leslie, the brother of James Malcolm David Leslie, 22nd Earl of Rothes (born 1958).
The first Leslie in Aberdeenshire was Alexander who was appointed Constable of The Bass in Inverurie in 1080 on behalf of the king,his brother-in-law.
The progenitor of the Clan Leslie is a man named Bartolf who was a nobleman from Hungary, who came to Scotland in 1067. Bartolf was in the retinue of Edgar the Ætheling, brother of Saint Margaret of Scotland, who was later the queen of Malcolm III of Scotland. Bartholf later married Malcolm III's sister, Princess Beatrix of Scotland.
Bartolf was said to be a man of intellect and bravery and as a result Malcolm III made him governor of the royal Edinburgh Castle and gave him estates in Fife, Angus, Mearns and Aberdeenshire. It is said that Bartolf helped the queen across a dangerous river on a horse and that Bartolf told her to "grip fast", which is where the Leslie family motto originates.
Bartolf established himself in the Garioch district of Aberdeenshire, at a place then known as Lesselyn. At Lesselyn he built a castle and it is from there that the name evolved into Lesley, and the various spelling variations. Bartolf's son was named Malcolm and was made constable of the royal Inverury Castle, which he held for David II of Scotland. His great-grandson was Sir Norman Lesley who acquired the lands of Fythkill in Fife, which were later called Lesley, in about 1282.
14th to 15th centuries: Rothes and Balquhain
The family sided with Robert the Bruce against firstly The Comyn in the Buchan and secondly Edward I and as a result were awarded further tracts of Aberdeenshire. They fought at the Battle of Bannockburn. Sir Andrew de Lesly was one of the signatories of Declaration of Arbroath, was sent to the Pope in 1320 asserting Scotland's independence. His grandson, Walter died at the Battlew of Harlaw in 1411 together with six of his cousins from Balquhain.
The chiefly line of the Clan Leslie passed to a junior branch of the family, from who the present Earl of Rothes descends. In 1391 Sir Norman Lesley believed that his only son, David, had been killed in the Crusades, and therefore passed over his estates to his cousin, Sir George Lesley. Then in 1398, after George Lesley had taken possession of the castle and lands, David returned from the Crusades and claimed possession of his estate. The family managed to resolve the matter peacefully and in 1445 Sir George Lesley's grandson, also called George, was created a Lord of Parliament as Lord Lesley of Leven, and all of his lands were united into the barony of Ballinbreich. At some point before 1458 he was then advanced to the title of Earl of Rothes.
During the Anglo-Scottish Wars George de Lesly was the Leslys' first Earl. His son George Leslie the 2nd Earl, and his grandson were killed at the Battle of Flodden in 1513.The third Earl, also George, carried out a private family vendetta on the life of David Beaton, cardinal Archbishop of St Andrews. At the trial he was acquitted.
George Leslie, 4th Earl of Rothes was one of the Scottish commissioners at the marriage of Mary, Queen of Scots as heir to the throne of France in 1558. George along with the Earl of Cascillus and two others died in mysterious circumstances, believed to be poisoning for refusing to allow the crown of Scotland to be settled on the Dauphin of France.
Fetternear which became the home of the Leslie,s of Balquhain,Wardes and Warthill includes the remains of a 14th-century palace, home of Bishop Alexander Kininmund who, in 1320, drafted the Declaration of Arbroath, the letter sent to Pope John XXII in Avignon declaring that the Scots would never be subjected to English rule. It also incorporates the remains of even earlier palaces and sites of settlement dating back 4,000 years.
John Leslie, Bishop of Ross was born in 1526. He was the most loyal of Mary, Queen of Scots's supporters during the turbulent times of 1562. It was John Leslie who wrote for her the famous History of Scotland. He, the second baron of Wardes who was awarded extensive lands in the Garioch from James IV was five times married. He is now represented in the Garioch by the Leslie's of Warthill descended from his second son. 
During the 17th century Lesleys fought in Germany, France, Sweden and in the Baltic as mercenaries. Alexander Leslie, 1st Earl of Leven fought on the Continent and then returned to Scotland to command the Covenanter army. His seat was Balgonie Castle or the Tower of Balgonie, which he improved and extended. Alexander Leslie won a great victory over the English royalists at the Battle of Newburn in 1640.
Wars of the Three Kingdoms
With the Scots Alexander Leslie, 1st Earl of Leven went into England in 1640 and defeated the King's soldiers at the Battle of Newburn. For this he was created Earl of Lewis by King Charles I. General Alexander Leslie of Balgonie fought for Gustavus Adolphus, the King of Sweden. He achieved great fame across Europe for his skills in war and returned to Scotland a Field Marshal.
In 1642 Alexander Leslie, 1st Earl of Leven went to Ireland and held command alongside Robert Munro (d. 1680) of the Scottish Army. They were sent to put down a rebellion of Irishmen who had killed Scotts in Ulster. In 1644, Alexander Leslie, 1st Earl of Leven commanded Scottish Covenantor forces to victory over English Royalists at the Battle of Marston Moor in 1644. This battle was the largest battle of the English and Scottish Civil War, and one of the most decisive. It resulted in a Parliamentarian victory, which meant that the north of England was effectively lost to King Charles for the rest of the war.
During the Civil War General David Leslie, Lord Newark was victorious commanding his Scottish Covenanters force against a Scottish Royalist force at the Battle of Philiphaugh in 1645. The Royalist army of James Graham, 1st Marquess of Montrose was destroyed by the Covenanter army of Sir David Leslie, restoring the power of the Committee of Estates.
Dunaverty Castle was a MacDonald stronghold. During the Civil War it was besiged in 1647 by Scottish supporters of Oliver Cromwell who were led by General David Leslie, Lord Newark from Clan Leslie. The MacDonalds surrendered and then 300 of them were massacred. The castle is nothing more than a ruin now, known as Blood Rock.
During the Civil War General David Leslie, Lord Newark laid siege to the Royalist garrison at Kincardine Castle. The Castle was being held by the Chief of Clan MacNab. MacNab found that it would not be possible to maintain defense and during the night, sword in hand at the head of 300 men they cut their way through the besieging force. All made it through apart from the MacNab chief himself and one other man who were captured and sent to Edinburgh as prisoners of war. The chief was sentenced to death but he escaped and rejoined King Charles and continued to fight. General David Leslie's Scottish Covenanter force was defeated by the Scottish Parliamentarian forces who were at this point in time loyal to the Parliament of England and Oliver Cromwell at the Battle of Dunbar (1650). David Leslie successfully commanded the Scottish Argyll Government Royalist forces at the Battle of Carbisdale (1650) where he was victorious against Scottish Royaslist forces commanded by James Graham, 1st Marquess of Montrose.
General David Leslie's Royalist Forces were defeated at the Battle of Worcester in 1651. Sir David Leslie who was now commanding Royalist forces, had supported the plan of fighting in Scotland, where royal support was strongest. King Charles, however, insisted on making the war in England.
Another important member of the clan was David Leslie, Lord Newark who was also a Covenanter and defeated James Graham, 1st Marquess of Montrose at the Battle of Philiphaugh in 1645. However he was later routed by the forces of Oliver Cromwell at the Battle of Dunbar (1650). David Leslie was captured and imprisoned in the Tower of London where he remained until the restoration of 1660.
The career of Walter Leslie (1607–1667) was all in Europe, where in the Thirty Years War he rose to prominence after leading the assassination of the Imperial generalissimo Wallenstein and his coterie in 1634, becoming a field marshal and imperial count.
John Hamilton-Leslie, 9th Earl of Rothes was Vice Admiral of Scotland and governor of the royal Stirling Castle. During the Jacobite rising of 1715 he supported the British government and commanded a regiment of cavalry at the Battle of Sheriffmuir. He sold much of the clan estates but Leslie House near Fife remained the seat of the chiefly Earls until 1926.
Castles and Great houses
- The Bass, the original Clan Leslie wooden castle built in 1080–1085. The remains can still be seen down by the River Ury in Inverurie next to the Celtic burial mounds.
- Leslie Castle in Aberdeenshire is a 17th-century tower house but stands on the site of an earlier fortification. The Leslies held the lands from at least the eleventh or twelfth century and there was once a courtyard and moat which have now gone.
- Castle Leslie in County Monaghan Ulster, Ireland. Built in the 17th century, the castle and surrounding 1,000-acre (4.0 km2) estate is still a Leslie residence, and an exclusive guest house, spa and school for cuisine. In 2002 Sir Paul McCartney married Heather Mills in the Family Church just adjacent to the castle.
- Fetternear Palace in Aberdeenshire, the Leslies built a tower house here in the 1560s. The castle passed to the Abercrombies in 1627 but later returned to the Leslies who kept there the Fetternear Banner, which was a pre-Reformation banner of the fraternity of the Holy Blood.
- Balquhain Castle in Aberdeenshire was held by the Leslies from 1340 but was sacked during a feud with the Clan Forbes in 1526.
- Balgonie Castle was acquired by Alexander Leslie in 1635.
- Leslie House in Fife was owned by the Leslies until 1919, when a major fire destroyed most of the house and its contents.
- Kininvie Manor House in the Spey Valley near Rothes. Has been held by the Leslies since 1521 and they apparently still own the property. Originally part of the Balquhain Leslies' estates, then purchased by the second son of the Earl of Rothes (1936), currently the home of Colonel David Leslie.
- Lickleyhead Castle in Aberdeenshire, built circa 1450, is still a Leslie family home, but in the spring of 2013 it was put up for sale.
- Warthill Castle in Aberdeenshire passed to the Leslies in 1518 and is still owned by their descendants.
- Wardhouse in Aberdeenshire was held by the Leslies in the 16th century but later passed to the Clan Gordon.
- Rothie House - owned by a cadet of Lord Rothes, the Crawford-Leslie family. The family died out after the only son was killed on active service at the Battle of Anzio in Italy in 1944.
- Clan Leslie Profile scotclans.com. Retrieved 2 December 2013.
- "Chiefs of Clans and Names in Scotland". Cracroft's Peerage.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
- Clan Leslie Origins, Clan Leslie Society Australia & New Zealand.
- Way, George and Squire, Romily. (1994). Collins Scottish Clan & Family Encyclopedia. (Foreword by The Rt Hon. The Earl of Elgin KT, Convenor, The Standing Council of Scottish Chiefs). pp. 194 - 195.
- Edward Furgol, 'Beating the Odds: Alexander Leslie's 1640 Campaign in England' in Steve Murdoch and Andrew Mackillop (eds.), Fighting for Identity: Scottish Military Experience c.1550-1900 (Leiden, 2002), pp. 33–59.
- Worthington, David. Scots in Habsburg Service, 1618-1648, 2004, Brill, especially pp. 153-288, and see index. google books
- Coventry, Martin. (2008). Castles of the Clans: The Strongholds and Seats of 750 Scottish Families and Clans. pp. 328 - 330. ISBN 978-1-899874-36-1.
- Clan Leslie Charitable Trust - Collection
- Clan Leslie Charitable Trust - Collection
- Sale ad  Retrieved 8 May 2013
- Lesley Laureanus-A Latin History-Circa 1600.Scottish Records Office
- The Leslie Family-Colonel Leslie-1860.
- Sir Robert Douglas's Peerage of Scotland.
- The Muniments of the Leslies of Balquhain in Aberdeen University.
- The Muniments of the Leslies of Warthill-at Warthill.