Family tree

Round provided a family tree^[1] to embody his essential findings, which is adapted below.

Alan,
Dapifer Dolensis
(Seneschal or Steward of Dol)

Alan,
Dapifer Dolensis,
Took part in First Crusade, 1097.

Flaald
Occurs at Monmouth, 1101/2

Rhiwallon
Monk of St Florent.

Alan Fitz Flaad,
Founder of Sporle Priory

Jordan Fitz Alan,
Dapifer in Brittany,
Benefactor of Sele Priory.

William Fitz Alan,
Lord of Oswestry
Founder/benefactor of Haughmond Abbey,
Died 1160

Walter fitz Alan
Dapifer Regis Scotiae,
Founder of Paisley Abbey,
Died 1177

Alan Fitz Jordan,
Dapifer Dolensis.

William Fitz Alan II,
Lord of Oswestry and Clun

Alan the Steward
Senescallus Regis Scotiae

Origin

Alan fitz Flaad
- William FitzAlan, Lord of Oswestry
  - William Fitz Alan, 1st Lord of Oswestry and Clun
    - William Fitz Alan, 2nd Lord of Oswestry and Clun
    - John Fitzalan, Lord of Oswestry
      - John FitzAlan, 6th Earl of Arundel
        House of FitzAlan
- Jordan fitz Alan, Seneschal of Dol
- Walter fitz Alan, 1st High Steward of Scotland
  - Alan fitz Walter, 2nd High Steward of Scotland
    - Walter Stewart, 3rd High Steward of Scotland
      - Alexander Stewart, 4th High Steward of Scotland
        James Stewart, 5th High Steward of Scotland
        Walter Stewart, 6th High Steward of Scotland
        Robert II of Scotland , from here descends the Royal House of Stewart/Stuart (see below)
        
        John Stewart of Ralston
        
        John Stewart of Bonkyll
        Alexander Stewart of Bonkyll
        Earls of Angus (extinct 1361)
        
        Alan Stewart of Dreghorn
        Stewart of Darnley
        Earls of Lennox
        
        Stewart of Garlies
        Earls of Galloway, Clan Stewart Current Clan Senior Cadet and Commander
        
        Stewart of Burray
        
        Stewart of Physgill (Phisgal)
        
        Stewart of Minto
        Lords Blantyre
        
        Stewart of Tongrie
        
        Stewart of Barclye
        
        Walter Stewart of Garlies and Dalswinton
        John Stewart of Dalswinton
        Walter Stewart of Garlies and Dalswinton
        
        James Stewart of Pearston
        Stewart of Pearston
        Stewart of Lorn
        Clan Stewart of Appin
        
        Earls of Atholl
        
        Earls of Buchan
        Earls of Traquair (illegitimate)
        
        John Stewart of Daldon
        
        Robert Stewart of Daldowie
      - Walter Bailloch
        Earls of Menteith
      - Robert Stewart, Lord of Darnley
- Simon fitz Alan
  - Clan Boyd

Royal House of Stewart/Stuart

Robert II of Scotland
- Robert III of Scotland
  - David Stewart, Duke of Rothesay
  - James I of Scotland
    - Alexander Stewart, Duke of Rothesay
    - James II of Scotland
    - Sir John Stewart (illegitimate)
      - Stewart of Ballechin
- Walter, Lord of Fife
- Robert Stewart, Duke of Albany
  - Murdoch Stewart, Duke of Albany
    - Robert Stewart
    - Walter Stewart
      - Lords Avandale
        Lords Stuart of Ochiltree
        Barons Castle Stewart
        Earls Castle Stewart
    - Alasdair Stewart
    - James Mor Stewart
      - James "Beag" Stewart (illegitimate)
        Stewart of Balquhidder
        Stewart of Ardvorlich
        
        Stewart of Glen Buckie
        
        Stewart of Gartnafuaran
        
        Stewart of Annat
  - John Stewart, Earl of Buchan
  - Robert Stewart, Earl of Ross
- Alexander Stewart, Earl of Buchan, the Wolf of Badenoch
  - Illegitimate sons
    - Stewart of Atholl
- David Stewart, Earl of Strathearn
- Walter Stewart, Earl of Atholl
  - Alan Stewart, 4th Earl of Caithness
  - David Stewart, Master of Atholl
- John Stewart, Sheriff of Bute (illegitimate)
  - Clan Stuart of Bute

House of Stuart

Descended from the Stewarts of Darnley (Stewarts of Lennox)

Henry Stuart, Lord Darnley, husband of Mary, Queen of Scots
- James VI and I
  - Henry Frederick, Prince of Wales
  - Charles I of England
    - Charles II of England
      - James Scott, 1st Duke of Monmouth (illegitimate)
        Dukes of Buccleuch
      - Charles FitzCharles, 1st Earl of Plymouth (illegitimate)
      - Charles FitzRoy, 2nd Duke of Cleveland (illegitimate)
        Dukes of Cleveland (extinct 1774)
      - Henry FitzRoy, 1st Duke of Grafton (illegitimate)
        Dukes of Grafton
      - George FitzRoy, 1st Duke of Northumberland (illegitimate)
      - Charles Beauclerk, 1st Duke of St Albans (illegitimate)
        Dukes of St Albans
      - Charles Lennox, 1st Duke of Richmond (illegitimate)
        Dukes of Richmond, Lennox and Gordon
    - James II of England
      - Charles Stuart, Duke of Cambridge
      - James Stuart, Duke of Cambridge
      - Charles Stuart, Duke of Kendal
      - Edgar, Duke of Cambridge
      - Charles Stuart, Duke of Cambridge
      - James Francis Edward Stuart
        Charles Edward Stuart
        
        Henry Benedict Stuart
      - James FitzJames, 1st Duke of Berwick (illegitimate)
        House of FitzJames
        Dukes of Berwick
        
        Dukes of Fitz-James (extinct 1967)
      - Henry FitzJames (illegitimate)
    - Henry Stuart, Duke of Gloucester
  - Robert Stuart, Duke of Kintyre and Lorne

Armorial

undiffered arms of stewart Stewart of Stewart	Arms of Stewart of Albany Stewart of Albany
Arms of Stewart of Barclye Stewart of Barclye	Arms of Stewart of Garlies Stewart of Garlies	Arms of Stewart of Minto Stewart of Minto
Arms of Stewart of Atholl Stewart of Atholl	Arms of Stewart of Bute Stewart of Bute	Arms of Stuart of Bute Stuart of Bute
Arms of Stewart of Ardvorlich Stewart of Ardvorlich	Arms of Stewart of Physgill Stewart of Physgill	Arms of Stewart of Rothesay Stewart of Rothesay

^ "Studies in peerage and family history".

[1] "Studies in peerage and family history".

[1]