Wiśniowiecki 's indebted family was not able to provide him with a funeral his rank and fame deserved . In the end , he never received the large funeral and the temporary location of his body , the monastery of the Holy Cross at Łysa Góra , became his final resting place . His body was lost in the fire at the end of the 18th century , which also prevent a modern reexamination of the cause of his death .