Friedrich, Prince of Hesse and by Rhine

Prince Friedrich of Hesse and by Rhine (1 October 1870 - 29 May 1873) was the haemophilic second son and fifth child of Ludwig IV and Alice, the younger brother of Victoria, Yelizaveta Feodorovna, Irene and Ernst Ludwig, and the older brother of Aleksandra Feodorovna and Marie. He died at the age of three when he fell out of a window and fell twenty feet onto the balustrade. His condition made it so he wouldn't survive the aftermaths of the fall.