id,case_id,role,surname,forename,occupation,place_id,raw_segment,seq 4428949,2173855,plaintiff,Thweng,Thomas,"knight, son of Marmaduke",,"Thweng, Thomas, knight, son of Marmaduke",0 4428950,2173855,defendant,Ros,Thomas de,,619824,"Ros, Thomas de, of Kendale, knight",0