Earl of Northumbria is in Earldoms of England Alphabetically.
There have been one creations of Earl of Northumbria:
1st. 1139. Henry Dunkeld 3rd Earl Huntingdon 1st Earl of Northumbria. Forfeit. 1157.
Summary
1139. Henry Dunkeld 3rd Earl Huntingdon 1st Earl of Northumbria [aged 25] created.
12th June 1152. Son King Malcolm IV of Scotland [aged 11] succeeded.
1157. King Henry "Curtmantle" II of England [aged 23] forfeit.
In 1139 Henry Dunkeld 3rd Earl Huntingdon 1st Earl of Northumbria [aged 25] was created 1st Earl of Northumbria. Ada Warenne Countess Huntingdon and Northumbria [aged 19] by marriage Countess of Northumbria.
On 12th June 1152 Henry Dunkeld 3rd Earl Huntingdon 1st Earl of Northumbria [aged 38] died. His succeeded half brother Simon Senlis 4th Earl Huntingdon 4th Earl of Northampton [aged 54] succeeded 4th Earl Huntingdon, 4th Earl of Northampton. His succeeded son Malcolm [aged 11] succeeded 2nd Earl of Northumbria.
In 1157 brothers King Malcolm IV of Scotland [aged 15] and King William I of Scotland [aged 14] paid homage to King Henry "Curtmantle" II of England [aged 23] at Peverell Castle, Derbyshire [Map].
King Malcolm IV of Scotland was deprived of his lands in Cumbria and titles by King Henry "Curtmantle" II of England. Earl of Northumbria forfeit.
King Malcolm IV of Scotland was granted 5th Earl Huntingdon, 5th Earl of Northampton.
King William I of Scotland was deprived of the Earldom of Northumbria.