id,case_id,role,surname,forename,occupation,place_id,raw_segment,seq 4492710,2198421,plaintiff,Alberti,Gerard de,member of the Guild of Albertines,604340,"Alberti, Gerard de, of Florence, member of the Guild of Albertines, on his own account",0 4492711,2198421,defendant,(not given),Walter,bishop of Durham,,"Durham, Walter, bishop of",0