Sanskrit would have been very Useful to the Comte de Saint Germain when he went to India and Tibet to study mystical things there

For example,  good friend of mine writes and speaks Sanskrit and because of this he is able to somewhat understand the languages that sprang from Sanskrit historically like Hindi, Tibetan, Newari and Russian.

So, the fact that the Comte de Saint Germain was fluent in Sanskrit is both interesting and Amazing for this time period for ANY European.