Robert Avenal
Robert was born about 1098 in Exeter, Devonshire, England.  He died after 1167 in Sandhurst, Gloucestershire, England.

 Isabel De Gloucester
Isabel was born about 1108 in Sandhurst, Gloucestershire, England.

 Ralph Avenal
Ralph was born about 1128 in Sandhurst, Gloucestershire, England.  He died after 1178.

 William De Avenal
William was born in 1135 in Over Haddon, Bakewell, Derbyshire, England.

 Isabel Avenal
Isabel was born about 1140 in Sandhurst, Gloucestershire, England.  She died about 1185.