 Complete the following phrase:  His possessions were increased following the defeat of Simon de Montfort at the Battle of Evesham 1265, via a series of grants that included the estates of the former rebel barons Walter de Fauconberg, John de Melsa and his brother Bernard. These grants were possibly compensation for the ransom his son Robert, negotiated and paid to his brother Bernard, and nephew Gilbert de Clare, 7th Earl of Gloucester, for his release following his capture, at the 