I just finished watching the secrets of dumbledore for the 4th time and i couldn't help but notice grindelwald using sort of the same spell that snape used on draco to heal him from harry's sectumsempra.
(context is that grindelwald used the healing spell on the qin that he injured)
Do you guys think snape and grindelwald might have had a connection somewhere ???
Snape claimed that Sectumsempra and Vulnera Sanentur were spells that were invented by him.