Donation and revocation of the donation for ingratitude

The application for revocation for ingratitude art. 800 c.c. it cannot be proposed that when the donee has committed one of the
facts provided for by numbers 1, 2 and 3 of article 463 cc, or is guilty of serious injury to the donor or has maliciously caused
serious damage to his assets or improperly refused alimony due pursuant to articles 433, 435 and 436 of the Italian civil code. civ.
The same goes for the action of unworthiness to take place, based on the same assumptions in fact and law as per art. 463 of the
Italian Civil Code:
1) whoever has voluntarily killed or attempted to kill the person whose succession is concerned, or the spouse, or a descendant, or
an ascendant of the same, provided that none of the causes that exclude the punishment occur, cf. art. 575 of the criminal code;
2) whoever has committed, to the detriment of one of these persons, an act to which the criminal law declares applicable the
provisions on homicide art. 580 of the criminal code;
3) who has denounced one of these persons for a crime punishable [with death], with life imprisonment or with imprisonment for
a period of not less than three years, if the complaint has been declared slanderous in criminal proceedings; or has testified against
the same persons accused of the aforementioned crimes, if the testimony has been declared false against him in a criminal trial;
3 bis) who, having lost their parental responsibility towards the person whose succession is in question pursuant to art. 330 of the
Italian Civil Code was not reinstated in parental responsibility on the date of opening of the succession itself;
4) whoever induced with willful misconduct pursuant to art. 1439 of the Italian Civil Code or violence pursuant to art. 1434 of the
Italian Civil Code the person whose succession is concerned to make, revoke or change the will, or prevented it;
5) whoever suppressed, concealed or altered the will by which the succession would have been regulated;
6) whoever has formed a false will or has knowingly used it