Marston Moor order of battle
This is the order of battle of the armies which fought on 2 July 1644 at the Battle of Marston Moor. Covenanter and Parliamentarian "Army of Both Kingdoms"

Army of the Solemn League and Covenant

(2000 Horse, 500 Dragoons, 11000 Foot, 50+ guns)

General Alexander Leslie, Earl of Leven (also Commander in Chief of the Army of Both Kingdoms)

Lieutenant General of the Horse Sir David Leslie
Right Wing
Earl of Leven's Regiment (8 troops. Colonel Alexander Leslie, Earl of Balgonie (Leven's son) commanding)
Earl of Dalhousie's Regiment (7 troops)
Earl of Eglinton's Regiment (7 troops)

Left Wing
Lieutenant-General David Leslie's Regiment (8 troops)
Earl of Balcarres's Regiment (8 troops)
Lord Kirkcudbright's Regiment (8 troops)

Dragoons
Colonel Hugh Fraser's Regiment (6 companies)

Lieutenant General of the Foot William Baillie
Sergeant Major General of the Foot Sir James Lumsden

The Scottish regiments of foot were brigaded in pairs. Unless stated, each regiment had 10 companies. Vanguard
The Earl of Crawford-Lindsay's brigade [aa]
The Earl of Crawford-Lindsay's Fife Regiment (Earl of Crawford-Lindsay)
The Midlothian Regiment (Viscount Maitland absent, Colin Pitscottie commanding)

General of the Ordnance Sir Alexander Hamilton's brigade [bb]
The Clydesdale Regiment (Sir Alexander Hamilton)
The Edinburgh Regiment (Colonel James Rae)

Main Battle
The Earl of Loudon's brigade (absent, Major General James Lumsden commanding [ff]
The Loudon-Glasgow Regiment, also known as The Chancellor's Foot (Earl of Loudon)
The Tweeddale Regiment (Earl of Buccleugh)
Lord Gordon's Regiment. The Earl of Cassillis's brigade [gg]
The Kyle and Carrick Regiment (Earl of Cassillis)
The Nithsdale and Annandale Regiment (William Douglas of Kilhead)

The Earl of Dunfermline's brigade [hh]
The Earl of Dunfermline's Fife Regiment (Earl of Dunfermline)
The Strathearn Regiment (Lord Coupar)

Lord Livingstone's brigade [jj]
The Stirlingshire Regiment (Lord Livingstone)
The Linlithgow and Tweeddale Regiment (The Master of Yester)

Rear (conjectured)

Viscount Dudhope's brigade [ll]
The Angus Regiment (Viscount Dudhope taken prisoner during the battle )
The Minister's Regiment (Sir Arthur Erskine of Scotscraig: 5 companies present)

 [mm]
The Levied Regiment (Lord Sinclair: 7 companies present)
The Galloway Regiment (William Stewart)

[nn]
The Teviotdale Regiment
The East Lothian Regiment (Sir Patrick Hepburn of Waughton) [oo]. General of the Ordnance Sir Alexander Hamilton
(Not all the guns listed below would have been present at the battle)
8 brass demi-cannons
1 brass culverin
3 brass quarter-cannons
9 iron demi-culverins
48 brass demi-culverins

Almost all the senior officers of the Covenanter army had experience in the Thirty Years' War. Many of the regiments had served during the Bishops' Wars in Scotland (1639-1641) and the Irish Rebellion of 1641. The infantry was thus a mix of experience, with new and old regiments both containing officers and men with continental experience. Those with siege experience had been left investing Newcastle under a veteran of Dutch service, Lieutenant General the Earl of Callandar. The cavalry used smaller and lighter mounts than English units. Those on the left wing were placed in the rear of Cromwell's horse; on the right, Eglinton's horse were alongside Fairfax's regiment in the front rank and Leven's and Dalhousie's regiments in the rear. Parliamentarian Army of the Eastern Association

(3000 Horse, 4000 Foot)

Captain General Earl of Manchester

Lieutenant General of the Horse Oliver Cromwell
Commissary General Bartholomew Vermuyden
Earl of Manchester's Regiment (Lieutenant Colonel Algernon Sidney: 11 troops)
Lieutenant General Cromwell's Regiment (Lieutenant Colonel Edward Whalley: 14 troops)
Commissary General Bartholomew Vermuyden's Regiment (5 troops)
Charles Fleetwood's Regiment (6 troops)

Dragoons
Lieutenant Colonel John Lilburne (6 companies)
(Manchester's dragoons had been defeated on 1 July at Poppleton.) Sergeant-Major General of the Foot Lawrence Crawford
Earl of Manchester's Regiment (Lieutenant Colonel Clifton: 18 companies)

Major General Crawford's Regiment (Lieutenant Colonel William Hamilton: 8 companies)
Sir Miles Hobart's Regiment (9 companies)

Francis Russell's Regiment (10 companies)
Edward Montagu's Regiment (10 companies)
John Pickering's Regiment (10 companies)
(Russell's, Montagu's and Pickering's regiments were brigaded together. Some of these would have taken heavy casualties at a failed storming of York on 16 June)

This army was raised in the Eastern Counties of England (Norfolk, Suffolk, Essex, Cambridgeshire and Huntingdonshire). Although there were religious tensions within the army between the Independents, championed by Cromwell, and the Presbyterians who were backed by Manchester and Crawford, there was no argument on the day of battle. Parliamentarian Army of Ferdinando, Lord Fairfax

(2000 Horse, 2000 Foot)

General Lord Fairfax

Lieutenant General Sir Thomas Fairfax
Sergeant-Major General of the Horse John Lambert
Lord Fairfax's Regiment
Sir Thomas Fairfax's Regiment
Charles Fairfax's Regiment
Sir Hugh Bethell's Regiment
John Lambert's Regiment
Lionel Copley's Regiment
Francis Boynton's Regiment
Sir Thomas Norcliff's Regiment
George Dodding's Regiment

Dragoons
Thomas Morgan

Sergeant-Major General of Foot (unknown)
Lord Fairfax's Regiment
John Bright's Regiment
Sir William Constable's Regiment
Francis Lascelles's Regiment
Robert Overton's Regiment
Ralph Ashton's Regiment
George Doddington's Regiment
Alexander Rigby's Regiment

The list of Colonels and regiments is probably incomplete. It is evident that most regiments were very weak. The troops present at Marston Moor had a high proportion of recent recruits. Royalists

Royalist Army

(2500 Horse, 7750 Foot, 14 guns)

General Prince Rupert of the Rhine

Lieutenant General Lord Byron
Sergeant Major General of Horse Sir John Urry (changed sides shortly after the battle)Prince Rupert's Lifeguard (140)
Prince Rupert's Regiment (500)

Lord Byron's Regiment
Colonel Marcus Trevor's Regiment
Sir John Urry's Regiment
Sir William Vaughan's Regiment (returned from Ireland)(Byron's, Trevor's, Urry's and Vaughan's regiments of horse together totalled 1,100)Lord Molyneux's Regiment
Sir Thomas Tyldesley's Regiment(Molyneux's and Tyldesley's regiments were recently raised in Lancashire. Thomas Leveson's Regiment
Leveson's Regiment was detached from the garrison of Dudley Castle and had been present at the Relief of Newark
Molyneux's, Tyldesley's and Leveson's regiments of horse together totalled 800)

Dragoons
Colonel Henry Washington (500)
Sergeant-Major General of Foot Henry Tillier (captured)
Sir John Girlington's Regiment

Prince Rupert's Regiment
Lord Byron's Regiment
(Prince Rupert's and Byron's regiments formed a separate brigade, numbering 1,500, commanded by Lieutenant Colonel Robert Napier of Byron's regiment)

Henry Warren's Regiment
Sir Michael Erneley's Regiment
Richard Gibson's Regiment
(Warren's, Erneley's and Gibson's regiments had returned from Ireland in late 1643 or early 1644, and had suffered heavy losses at the Battle of Nantwich. Erneley's and Gibson's regiments were brigaded together)

Robert Ellice's Regiment
Henry Tillier's Regiment
Robert Broughton's Regiment
(Tillier's and Broughton's regiments had returned from Ireland in early 1644; Robert Ellice's regiment consisted of men from North Wales but had joined these two regiments on their march through Lancashire). Sir Thomas Tyldesley's Regiment
Edward Chisenall's Regiment
(Tyldesley's and Chisenall's regiments were recently raised in Lancashire). Henry Cheator's Regiment (raised in Cumberland, joined Rupert's army at Skipton at the end of June)

14 assorted field guns

The hard core of this army was Rupert's own regiments of horse and foot, and a small army under Lord Byron from Cheshire and North Wales. To this had been added English regiments recently returned from Ireland, which were said to be full of Puritan sympathisers, and newly raised units from Lancashire, with other small contingents. Contingent of "Northern Horse"

(3500 Horse, 220 foot)

General of Horse George, Lord Goring 
Lieutenant General Sir Charles Lucas (captured)
Commissary General George Porter (captured)

Newcastle's cavalry escaped from York shortly after the start of the siege and moved through Derbyshire to link up with Rupert near Bury in Lancashire. The "Northern Horse" already had a reputation for hard fighting but poor discipline. There were too many weak regiments of horse and commanders to list separately; also, it is not certain whether any given regiment was present at Marston Moor, or was elsewhere (with a force under Colonel Clavering, or in various garrisons). At Marston Moor, Newcastle's cavalry were organised as:

Sir Charles Lucas's Brigade (700)
Sir Richard Dacre's Brigade (800) (Dacre was mortally wounded during the battle)
Sir William Blakiston's Brigade (600)
Sir Edward Widdrington's Brigade (400)
Colonel Samuel Tuke's Regiment (200) (formerly the Duke of York's regiment)
Colonel Francis Carnaby's Regiment (200)
Commissary-General George Porter's Troop (50)

Derbyshire contingent
When Goring marched to join Rupert in Lancashire, he picked up a contingent from Derbyshire en route. John Frescheville's Regiment of Horse (240)
Rowland Eyre's Regiment of Horse (160)

Detachments from Frescheville's, Eyre's and John Millward's Regiments of Foot (220) (noted as the "Derbyshire Foot" on De Gomme's plan)

Garrison of York (part)

(number of horse unknown, 3,000 Foot)

General Marquess of Newcastle 
Lieutenant General Lord Eythin

Sir Thomas Metham's "Troop of Gentleman Volunteers"

Sergeant-Major General Sir Francis Mackworth
As with Goring's horse, Newcastle's infantry were from too many weak regiments to list separately. On the battlefield they were formed into seven "divisions". Newcastle's army was mostly raised in Northumberland and Durham and had already endured a siege of ten weeks, with some hard fighting. Three other regiments (of Sir Thomas Glemham, Sir John Belasyse and Sir Henry Slingsby), totalling 1000 men, were left to hold York. References

Notes

Printed Sources

 

Orders of battle