The circle of persons who can dispute paternity:
children-heirs of the above-mentioned person in the event that he: died before the birth of the child and left a statement to the notary about non-recognition of his paternity, or died after the birth of the child, but during his lifetime filed a lawsuit in court to exclude his name from the birth certificate.
wife or parents (heirs) after the death of a person who did not know during his lifetime that he was registered as the child's father;
the child's mother, if her husband is recorded as the child's father, but in fact he is another man - the biological father (provided that the real father confirms this in his application to recognize himself as the child's father).