Robert de Caen 1st Earl of Gloucester 1 2 3
- Born: Abt 1090, <Caen, Normandy, France>
- Marriage (1): Mabel FitzHamon of Gloucester in 1107
- Marriage (2): Elizabeth
- Marriage (3): Maud
- Died: 31 Oct 1147, Bristol, Gloucestershire, England about age 57
- Buried: St. James Priory, Bristol, Gloucestershire, England
Other names for Robert were Robert "the King's son" de Caen Earl of Gloucester and Robert de Caen "the Consul," Earl of Glouchester.
Natural son of Henry I. Half-brother of Empress Matilda.
Source: familysearch.org (Kevin Bradford)
Source: Ancestral Roots of Certain American Colonists Who Came to America before 1700 by Frederick Lewis Weis and Walter Lee Sheppard, Jr, ed. by William R. Beall & Kaleen E. Beall (Baltimore, 2008), line 123-26:
"ROBERT DE CAEN, Earl of Gloucester, 1122-1147 (natural son of Henry I, prob. by a NN dau. of the Gay or Gayt family of N. Oxfordshire... b. abt 1090, d. Bristol, 31 Oct. 1147, called 'the Consul'; m. Maud Fitz Hamon, dau. and h. of Robert Fitz Hamon, d. 1107, seigneur of Crelly in Calvados, Normandy, Lord of Thoringni, etc., and Sybil de Montgomery, dau. of Roger de Montgomery, Earl of Shrewsbury."
Also line 63-26 (Hawise de Beaumont)
From Wikipedia - Robert, 1st Earl of Gloucester :
Robert, 1st Earl of Gloucester (c. 1090 - October 31 , 1147 ) was an illegitimate son of King Henry I of England , and one of the dominant figures of the period of English history sometimes called The Anarchy . He is also known as Robert of Caen, and Robert "the Consul", though both names are used by later historians and have little contemporary justification, other than the fact that Robert's clerks made a practice of using the Latin word consul rather than the more common comes for his title of 'Earl'.
Robert was the eldest of Henry's many illegitimate children. He was born well before his father's accession to the English throne, probably in the late 1080s, as he had himself had a son by 1104. There are numerous references noting him to have been the son of Sybil Corbet , heiress to Robert Corbet, Lord of Alcester, whose family had land in both England and Normandy. He was born in Caen, Normandy and was the first of several children between Henry and his Mistress Sybil Corbet. 
Robert was acknowledged at birth, though in view of the vicissitudes of his father's career between 1087 and 1096 it is unlikely he was raised in his household. He was educated to a high standard, was literate in Latin and had a serious interest in both history and philosophy, which indicates that he was at least partly raised in a clerical household, a suggestion made all the more likely as his first known child, born around 1104, was born to a daughter of Samson, Bishop of Worcester (died 1112) who up till 1096 had been a Royal Chaplain and Treasurer of Bayeux . It may be significant that his next brother Richard was brought up in an episcopal household, that of Robert Bloet , bishop of Lincoln . Robert later received dedications from both Geoffrey of Monmouth and William of Malmesbury . William's 'Historia Novella' contains a flattering portrait of the Earl.
Robert appears at court in Normandy in 1113, and in 1107 he had married Mabel, eldest daughter and heir of Robert Fitzhamon , who brought him the substantial honour of Gloucester in England, Glamorgan in Wales and the honours of Sainte-Scholasse-sur-Sarthe and Évrecy in Normandy, as well as Creully . In 1121 or 1122 his father created him Earl of Gloucester . Through his marriage to Mabel he became second Lord of Glamorgan, and gained possession of Cardiff Castle , and was responsible for the building of the stone keep there, which remains as the best preserved Norman shell keep in Wales, and one of the best in the British Isles. Robert had considerable authority and autonomy, to the extent that he even minted his own coinage, today preserved in the British Museum .
Family and children
He married, around 1107, Mabel FitzHamon of Gloucester (died 1156), daughter of Robert Fitzhamon and Sibyl de Montgomery . Their children were:
William Fitz Robert, 2nd Earl of Gloucester , died 1183. He married Hawise (died 1197) daughter of Robert II, Earl of Leicester.
Roger , Bishop of Worcester , (died 9 August 1179 , Tours ).
Hamon, killed at the siege of Toulouse in 1159.
Robert. (died before 1157) Also called Robert of Ilchester in documents. He married Hawise, (died after 1210) daughter of Baldwin de Redvers and Adeliz. Their daughter Mabel married Jordan de Cambernon .
Maud , (died 1190), wife of Ranulph de Gernon, 2nd Earl of Chester .
Philip, Castellan of Cricklade , (died after 1147). He took part in the Second Crusade .
Earl Robert had an illegitimate son, Richard, bishop of Bayeux (1135-1142), by Isabel de Douvres , sister of Richard de Douvres , bishop of Bayeux (1107-1133).
Noted events in his life were:
• 2nd Lord of Glamorgan. by right of his wife
• Created: 1st Earl of Gloucester, Aug 1122.
Robert married Mabel FitzHamon of Gloucester, daughter of Robert FitzHamon Sieur de Creully and Sybil Montgomery, in 1107. (Mabel FitzHamon of Gloucester was born in 1090 in Gloucestershire, England and died on 29 Sep 1157 in Bristol, Gloucestershire, England.)
Robert next married Elizabeth.
Robert next married Maud.