Crazyhorse,

I remember 2 examples from our history.

one is associated with King Mandev and her mother. After the death of his father and king Dharmadev, new king Mandev stops his mother from going sati (सती जानु ). 

I assume that u have heard of very famous(infamous) curse in nepali history. सती को सराप

when kaji Bhim malla was killed by then king kathmandu ( i don't remember the name of the king), his wife cursed Nepal before going sati ( this is making me laugh....hehehhe).

I don't exactly remember when this practise was out-lawed in nepal. I think, it is early in राणा शासन.

I believe, royals or close to royals of different eras of nepali history had practiced sati. Bahuns and Chhetris (not trying to be racist here) were the most to practice that ritual.