World's most demented electoral system?

[Okay, maybe Mike Johnson is a competent parliamentarian.]

I'm not sure if this counts as an 'electoral system' but the Japanese House of Peers under the Meiji Constitution was partially actual peers elected by their fellows like Scottish and Irish representative peers, partially higher-ranking peers who held their seats automatically, partially representatives elected from a property-limited franchise (technically, a tax-burden-limited franchise, much like how Japanese feudal domains were measured by projected agricultural yield rather than land area), partially representatives elected by the members of something called the Imperial Academy, and partially directly nominated by the Emperor, with terms of either seven years or for life, and with three different minimum ages, each depending on which box you checked.