Louise's daughter-in-law was Hilda of Nassau. She was the youngest siblings of GD William of Luxemburg (father of the 6 lovely Luxemburg Princesses). They had 2 siblings who died in infancy and a brother who died as a teenager. There was a 12 year spread between William and Hilda. Their father, GD Adolph, had previously been married to GDss Elizabeth Mikhailovna who died, along with their child, in childbirth.
'Fritz' and Hilda had no children (and Louise's other son had died in infancy) so the throne of Baden went to Fritz's cousin Max (who married Thyra's daughter Marie Louise after having broken his engagement to GDss Helen Vladimirovna), the grandson of GDss Marie N. 'Good, dear Fritz' as QV and Vicky both described him, had been put forward by QV as a potential spouse for Ella and she was very disappointed when Ella refused. Since Ella had previously turned down Wilhelm, Empress Augusta was very angry at this 2nd snub of a grandson of hers and in turn 'cut' the Hessian princesses at Court. Louise was apparently put out as well.