Anglo-Saxon Chronicle. 1070. Earl Baldwin (age 40) also died, and his son Arnulf (age 15) succeeded to the earldom. Earl William (age 50), in conjunction with the king of the Franks (age 17), was to be his guardian; but Earl Robert (age 37) came and slew his kinsman Arnulf (age 15) and the earl (age 50), put the king to flight, and slew many thousands of his men.

In 1075 three Earls joined in rebellion against King William "Conqueror" I of England (age 47). The three Earls were: [his son] Roger de Breteuil Fitzosbern 2nd Earl Hereford, Ralph de Gael 2nd Earl East Anglia (age 33) and Waltheof Northumbria 1st Earl of Northampton 1st Earl Huntingdon. The ostensible cause of their rebellion was William's (age 47) the marriage of [his daughter] Emma Fitzosbern Countess East Anglia, daughter of William Fitzosbern 1st Earl Hereford, with Ralph de Gael 2nd Earl East Anglia (age 33). Possibly to do with she being Norman and he being British/English.

Roger de Breteuil Fitzosbern 2nd Earl Hereford forfeit Earl Hereford and was sentenced to life imprisonment.

Flowers of History. 1075. Queen Edith (age 49) died on the fifth of April. The same year, king William (age 47) gave the [his daughter] daughter of William, the son of Osbert, to earl Radolph (age 33), as his wife, and gave him also the government of Norfolk and Suffolk. This Radolph was of British extraction, on his mother's side, and his father was an Englishman. He was born in Norfolk, and there he celebrated his marriage, which was the cause of destruction to many persons. At that wedding there were present [his son] earl Roger and earl Waltheof; and many bishops and abbots; and they took counsel how to expel king William (age 47) from his kingdom. And this speedily became known to the king, who was in Normandy, and immediately the king returned to England, and took Waltheof, and Roger, who was his own kinsman, and threw them into prison. As to the rest who were present at the wedding, he deferred his determination.