As a number of people don't get the story, here is some explanation.

It is 1399. Spring has come.
A woman - living in a hut in the woods - is picking herbs and flowers. 
She is one of the very few who know how to use them.
On one day, when walking through the forest, listening to the nature's voices 
she meets a young man, who has been bitten by a viper. He is scared, 
his hand swollen, he probably is convinced that there is no cure against viper's venom. 
But it's not the first time she is to overcome a deadly poisoning. 
She knows a lot about curing various conditions. Devoted her life on it; 
many people from the villages around the forest owe their health or lives to her.
But wait... From behind the trees the envious and greedy eyes 
are watching her giving some sort of antidote to the young man to drink.
Greedy fool went to the bishop, told him what he had seen, and got 
a piece of silver in return.
Soon, the Holy Office, also called the Inquisition, accused the woman of black magic. 
They caught her and threw into the dungeon. Not for long... 
On winter that year, with her long hair cut, dressed in a snow-white 
dress like others like her, she was killed in a terrible way, died in flames... 
Last words she heard were 'Burn, burn, in the name of...'.

(According to various sources - from 100 000 to 2 000 000 people were 
killed by the Inquisition 'in the name of God' for 'witchcraft', 
only in XV-XVIIth century. Not counting other charges.)