Louis, Prince of Hesse and by Rhine (Ludwig Hermann Alexander Chlodwig, 20 November 1908 – 30 May 1968) was the youngest son of Ernest Louis, Grand Duke of Hesse by his second wife, Princess Eleonore of Solms-Hohensolms-Lich.. He succeeded his brother Georg Donatus as the titular Grand Duke of Hesse after his death. He married Margaret Campbell Geddes, daughter of Auckland Campbell Geddes …
https://en.wikipedia.org/wiki/Louis,_Prince_of_Hesse_and_by_Rhine

