Because no historical material suggests that the prayer (now it is just a superstition but was a highly respectable medical treatment at that time) was given to wish her recovery from illness, some people insists that she was left to die without receiving any medical treatment (there is even an assassination theory).
病気回復を願う祈祷（現代では迷信だが、当時は立派な医療行為のひとつ）が行われたとの史料がないことから、医療行為を施されず見殺しにされたとの主張（さらに踏み込んで暗殺説）もある。