A passionate woman by any means,had the nerve to divorce her prussian prince in a day and age this was considered a totally impossible thing to do.Not just a divorce,but one from a member of the Prussian House,Marianne couldn't care less and didn't wish to put up any longer with her idiot adultrous husband,allthough she hardly saw her children again,not until later,much later,after the divorce.
Her passion pointed towards her gardener,Johannes van Rossum,with whom she had a son,born in Sicily,out of the way/view of "the people".Their's was a very happy relation,but ofcourse considered frivolous to say the least.Queen Sophie thought her"to be a spoiled lady and a creature of low morals".(Jealous maybe,she had the guts Sophie lacked?)Furthermore,as Princess Marianne visited The Netherlands again after decades,Queen Sophie refused to receive her at the palace.
Tragically,Marianne's and Johannes's son died after a short illness at the age of 10.They lived at Reinhartshausen Castle,germany.