One prize was awarded in 2011 because the committee was unaware the recipient had recently died:
Montreal-born scientist Dr. Ralph Steinman will be awarded the Nobel Prize for Medicine, despite his death three days earlier.
https://www.cbc.ca/news/health/montreal-born-doctor-gets-posthumous-nobel-honour-1.824238
Posthumous nominations
Although posthumous nominations are not presently permitted, individuals who died in the months between their nomination and the decision of the prize committee were originally eligible to receive the prize.[citation needed] This has occurred twice: the 1931 Literature Prize awarded to Erik Axel Karlfeldt, and the 1961 Peace Prize awarded to UN Secretary General Dag Hammarskjöld. Since 1974, laureates must be thought alive at the time of the October announcement. There has been one laureate, William Vickrey, who in 1996 died after the prize (in Economics) was announced but before it could be presented.[61] On 3 October 2011, the laureates for the Nobel Prize in Physiology or Medicine were announced; however, the committee was not aware that one of the laureates, Ralph M. Steinman, had died three days earlier. The committee was debating about Steinman's prize, since the rule is that the prize is not awarded posthumously.[9] The committee later decided that as the decision to award Steinman the prize "was made in good faith", it would remain unchanged, and the prize would be awarded.[62]
I read something recently that I have misremembered but somehow it lead me to making the statement. In my defense, I did state I was not completely certain. Thank you for correcting me