id,case_id,role,surname,forename,occupation,place_id,raw_segment,seq 3721448,1933018,plaintiff,Lok,William,mercer,585869,"Lok, William, of London, mercer",0 3721449,1933018,defendant,Glemham,John,,652226,"Glemham, John, of Glemham, Suff, knight",0 3721450,1933018,defendant,Grenfeld alias Grevynfeld,John,gent,595017,"Grenfeld alias Grevynfeld, John, of Inner Temple, London, gent",1 3721451,1933018,defendant,Russell,John,gent,617821,"Russell, John, of le Frysth, Surrey, gent",2 3721452,1933018,defendant,Russell,Roger,gent,617822,"Russell, Roger, of le Frysth, gent",3 3721453,1933018,defendant,Seyntleger,George,,617823,"Seyntleger, George, of Chesewyke, Middx, knight",4