CREATE TABLE table_name_65 (count_palatine_of_the_rhine VARCHAR2, interregnum_began VARCHAR2)

What is the name of the Count Palatine of the Rhine with a Interregnum began of 2 april 1657 death of ferdinand iii?
SELECT count_palatine_of_the_rhine FROM table_name_65 WHERE interregnum_began = "2 april 1657 death of ferdinand iii"
SELECT "count_palatine_of_the_rhine" FROM "table_name_65" WHERE "2 april 1657 death of ferdinand iii" = "interregnum_began"