CREATE TABLE table_name_65 (count_palatine_of_the_rhine VARCHAR(255), interregnum_began VARCHAR(255))
What is the name of the Count Palatine of the Rhine with a Interregnum began of 2 april 1657 death of ferdinand iii?
    
SQL: SELECT count_palatine_of_the_rhine FROM table_name_65 WHERE interregnum_began = "2 april 1657 death of ferdinand iii"