[['interregnum began', 'interregnum ended', 'duration', 'count palatine of saxony', 'count palatine of the rhine'], ['9 december 1437 death of sigismund', '18 march 1438 election of albert ii', '3 months , 9 days', 'frederick ii , elector of saxony', 'louis iv , elector palatine'], ['27 october 1439 death of albert ii', '2 february 1440 election of frederick iii', '3 months , 6 days', 'frederick ii , elector of saxony', 'louis iv , elector palatine'], ['12 january 1519 death of maximilian i', '17 june 1519 election of charles v', '5 months , 5 days', 'frederick iii , elector of saxony', 'louis v , elector palatine'], ['20 january 1612 death of rudolph ii', '13 june 1612 election of matthias', '4 months , 24 days', 'john george i , elector of saxony', 'frederick v , elector palatine'], ['20 march 1619 death of matthias', '28 august 1619 election of ferdinand ii', '5 months , 8 days', 'john george i , elector of saxony', 'frederick v , elector palatine'], ['2 april 1657 death of ferdinand iii', '18 july 1658 election of leopold i', '15 months , 16 days', 'john george ii , elector of saxony', 'ferdinand maria , elector of bavaria'], ['17 april 1711 death of joseph i', '12 october 1711 election of charles vi', '5 months , 25 days', 'frederick augustus i , elector of saxony', 'john william , elector palatine'], ['20 october 1740 death of charles vi', '14 january 1742 election of charles vii', '14 months , 25 days', 'frederick augustus ii , elector of saxony', 'charles albert , elector of bavaria'], ['20 january 1745 death of charles vii', '13 september 1745 election of francis i', '7 months , 24 days', 'frederick augustus ii , elector of saxony', 'maximilian iii , elector of bavaria'], ['20 february 1790 death of joseph ii', '30 september 1790 election of leopold ii', '7 months , 10 days', 'frederick augustus iii , elector of saxony', 'charles theodore , elector of bavaria'], ['1 march 1792 death of leopold ii', '5 july 1792 election of francis ii', '4 months , 4 days', 'frederick augustus iii , elector of saxony', 'charles theodore , elector of bavaria']]
the longest Duration of Imperial Vicar was John George Ii for 15 Month & 16 Day
the longest [ENT] of [ENT] was [ENT] for [ENT] & [ENT]