General Notes

On Leicester, Earldom of [Burke's Peerage, p. 1671]:

The 4th [Beaumont] Earl, who was also the fourth named Robert, accompanied Richard I on the Third Crusade but accomplished a smooth transfer of loyalty to John on the latter's succession in 1199.  On his death without issue in 1204 the elder of his two sisters and coheirs, Amice, began calling herself Countess of Leicester.  Her first husband was Simon de Montfort (roughly halfway between Paris and Chartres) and Rochefort, and her son by him, another Simon de Montfort, was being regarded as Earl of Leicester by the years 1205 or 1206, shortly after the death of his maternal uncle [Robert de Beaumont], the 4th Earl of whatever creation had occurred in or about 1102.