Vilhelm Marcher did commit suicide, after a hard talk with King Christian IX..
His death was announced( or what you call it!!) in a news paper the next day..of cource, it didnt say the reason why...
I have read that Princess Thyra, during her early married life had several mental breakdowns, and she would be found wondering around, looking for her baby in the park at her home, Schloss Cumberland in Austria..
So a very tragic history for those involved...