Alrewas at the time was a flourishing settlement in the ownership of Ælfgar, Earl of Mercia and it remained the property of King John until he granted it to Roger de Somerville to be followed by the Griffiths and later, the Turtons.
This manor came under the control of the King again following Morcar being murdered in 1015 and the lands were later given to Ælfgar, the Earl of Mercia, but he lost this at the Norman Conquest.
Gruffydd's consolidation of power and alliance with Ælfgar of Mercia made him a threat to Harold Godwinson, earl of Hereford.
Gruffydd now allied himself with Ælfgār, son of Earl Leofric of Mercia, who had been deprived of his earldom of East Anglia by Harold Godwinson and his brothers.
In 1055 Ælfgar, the earl of East Anglia, was exiled and allied himself with the ruler of Wales, Gruffydd ap Llywelyn.
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Ælfgar of Selwood (fl. unknown), saint venerated in later medieval Somerset
One son, Burgheard, predeceased his father, expiring while returning from Rome early in 1061 and was buried at Reims.
Lapley Priory was a community of Black Monks (Benedictines), endowed c.1061, in the time of Edward the Confessor, by Alfgar, Lord of Mercia and Chester, in memory of his third son Burchard who died in Reims while returning from a pilgrimage to Rome with Aldred Archbishop of York.