This is the 9302nd most frequent Polish word.
twardowskiego
"Twardowskiego" is the genitive form of "Twardowski," a Polish surname.
Here 'Twardowskiego' refers to the possessive form of 'Twardowski,' a character from Polish folklore.
Księżyc próbował odszukać Pana Twardowskiego, lecz nie udało mu się.
The Moon tried to find Mr. Twardowski, but it couldn't.
In this sentence, 'Twardowskiego' is the genitive case, used to indicate possession or a topic related to Twardowski.
Czy czytałeś książkę o przygodach Twardowskiego?
Have you read the book about Twardowski's adventures?
Here 'Twardowskiego' is used in the genitive case, referring to the mentioned character's impact or consequence after his demise.