My first thought was: "Has this death relation to Covid-19?"
And just found an answer:[0]
> Penderecki had been tested for coronavirus after his carer was diagnosed with the illness, but the composer's result was negative, his daughter Beata Penderecka told Reuters.[1]
> Part of the family had been under quarantine at home after attending a family meeting on March 7, Penderecka said. Several people present later tested positive for coronavirus.
Penderecki's "long illness" has been common knowledge in the classical music world for some time now, and the composer has been forced to cancel many engagements and commissions over the last couple of years due to ill health, well before Covid-19 was ever a thing.
I was going to point out that some deaths may be more likely to be included in the list because they died of COVID-19, but fuck, that does not seem to be the case. Genuinely terrifying.
And just found an answer:[0]
> Penderecki had been tested for coronavirus after his carer was diagnosed with the illness, but the composer's result was negative, his daughter Beata Penderecka told Reuters.[1]
> Part of the family had been under quarantine at home after attending a family meeting on March 7, Penderecka said. Several people present later tested positive for coronavirus.
> Elzbieta Penderecka, the composer's wife tested negative, Beata Penderecka said.
UPD: On Wikipedia there no info about his "long illness".[2]
JFTR, My Personal Opinion: Tests which used now around the world for Covid-19 testing has NO 100% guaranties on its results.
[0] https://www.thejakartapost.com/life/2020/03/29/polish-compos...
[1] https://www.reuters.com/article/poland-music-penderecki/upda...
[2] https://en.wikipedia.org/wiki/Deaths_in_2020#29