what happened during the embassy
harold travelled to france but ended up in ponthieu which is a small county between normandy and flanders and was taken prisoner by the count guy of ponthieu
then duke william demanded that guy handed over harold and harold helped him in two military campaigns which resulted in william giving harold gifts of weapons and armour -> symbolic of the relationship between a lord and his warrior
after telling edward's messaage to william, harold made a solemn oath to william swearing on two holy relics