Why isn't Simon Schnittke's Yahrzeit Exact?

We do not know the exact date of death of Simon Schnittke. According to Jewish tradition, if the exact date of death is not known, the yahrzeit of a person can be observed on any day, as long as it is that same day every year. Since that is the case, we observe the yahrzeit of Simon Schnittke on 21 Nisan. If you know the exact date of death of Simon Schnittke, contact us via the contact page. Be sure to include the url: https://eachofushasaname.org/person/5345/Simon_Schnittke.html