Question: Who was the son of Waltheof I that was killed by Thurbrand the Hold?

Context paragraphs:
Almost Killed Me: Almost Killed Me is the debut studio album by Brooklyn-based rock band the Hold Steady, released on March 16, 2004 on Frenchkiss Records.  It is considered by many to be a concept album, with several recurring themes such as near-death experiences, parties and the fictional character Charlemagne.  It's concept album roots are further explored with the recurring characters in Separation Sunday, the Hold Steady's second album, which uses the same characters introduced in "Almost Killed Me".  "Almost Killed Me" was ranked number 99 on "Rolling Stone"' s 100 Best Albums of the Decade.

Waltheof of Melrose: Waltheof (c. 1095 – 1159) was a 12th-century English abbot and saint.  He was the son of Simon I of St Liz, 1st Earl of Northampton and Maud, 2nd Countess of Huntingdon, thus stepson to David I of Scotland, and the grandson of Waltheof, Earl of Northampton.

Waltheof of Bamburgh: Waltheof was high-reeve or ealdorman of Bamburgh (fl.  994).  He may have been son or grandson of Osulf I and was father of Uhtred the Bold, Ealdorman of Northumbria.  His name is Scandinavian and implies that he had Viking ancestors.

Uhtred the Bold: Uchtred or Uhtred, called the Bold, (d. 1016) was the ealdorman of all Northumbria from 1006 to 1016, when he was assassinated.  He was the son of Waltheof I, ealdorman of Bamburgh, whose ancient family had ruled from the castle of Bamburgh on the Northumbrian coast.

Waltheof, Earl of Dunbar: Waltheof (died 1182), Earl of Lothian or "Dunbar" and lord of Beanley, was a 12th-century Anglo-Scottish noble.  He was the eldest son of Gospatric III, Earl of Lothian by his Scottish wife Deirdre.

Waltheof of Allerdale: Waltheof of Allerdale was an 11th- and 12th-century Anglo-Saxon noble, lord of Allerdale in modern Cumbria.  Brother of Dolfin of Carlisle and Gospatric of Dunbar, Waltheof was son of Gospatric, Earl of Northumbria.  Both Waltheof and his brother Gospatric witness Earl David's "Glasgow Inquest" 1113 x 1124, and Waltheof also attests some of David's charters as king of the Scots later.  The account of Waltheof and his family in Cumbrian monastic cartularies (St Bees and Wetheral), says that he gave land in Allerdale to his three sisters, Octreda, Gunhilda and Maud.

Thurbrand the Hold: Thurbrand (Old English: "Þūrbrand" ; fl.  1010s), nicknamed "the Hold", was a Northumbrian magnate in the early 11th-century.  Perhaps based in Holderness and East Yorkshire, Thurbrand was recorded as the killer of Uhtred the Bold, Earl of Northumbria.  The killing appears to have been part of the war between Sweyn Forkbeard and Cnut the Great against the English king Æthelred the Unready, Uhtred being the latter's chief Northumbrian supporter.  Thurbrand may also have attested a charter of 1009 and given a horse to Æthelred's son Æthelstan Ætheling.  The killing is the first known act, if it did not initiate, a bloodfeud between Thurbrand's family and Uhtred going into the time of Earl Waltheof.  It is possible that Holderness took its name because of Thurbrand's presence or ownership of the peninsula.

Earl Ealdred, son of Uchtred: Ealdred was Earl of Bernicia from 1020/25 until his murder in 1038.  He was the son of Uhtred, Earl of Northumbria, who was murdered by Thurbrand the Hold in 1016 with the connivance of Cnut.  Ealdred's mother was Ecgfrida, daughter of Aldhun, bishop of Durham.

Eadwulf Cudel: Eadwulf Cudel or Cutel (meaning cuttlefish) was Earl of Bernicia (or Bamburgh) in the early eleventh century.  Following the destruction of the kingdom of Northumbria by the Vikings in 867, they established the Kingdom of York in southern Northumbria, but English rulers held on in the north, the former kingdom of Bernicia, from their base at Bamburgh.  They were variously described as earls or ealdormen or high-reeves, and their independence from the kings of England and Scotland is uncertain.  Uhtred the Bold and Eadwulf Cudel were sons of Waltheof, earl of Bamburgh, who died in 1006.  He was succeeded by Uhtred, who was appointed by Æthelred the Unready as earl of the whole of Northumbria.  Uhtred was murdered in 1016, and king Cnut then appointed Erik, son of Hakon, earl at York, while Eadwulf succeeded at Bamburgh.

Eadwulf II of Northumbria: Eadwulf or Eadulf (died 913) was a ruler in Northumbria in the early tenth century.  According to genealogy of Waltheof, Earl of Northampton (and Northumbria), Eadwulf was the son of Æthelthryth daughter of Ælla, King of Northumbria--though this genealogy is not a contemporary one.

Supporting paragraphs: Thurbrand the Hold Uhtred the Bold
Answer: Uhtred the Bold