whose successors are arthur ponsonby and arthur ponsonby ?
SELECT DISTINCT var_uri where brack_open var_uri dbp_successor dbr_Arthur_Ponsonby,_1st_Baron_Ponsonby_of_Shulbrede sep_dot var_uri dbp_successor dbr_Arthur_Ponsonby,_1st_Baron_Ponsonby_of_Shulbrede brack_close