Does the questioner inherit from his deceased paternal aunt who has no sisters but has a daughter and a husband?

The question is unclear. However, if you are asking whether you inherit from your deceased paternal aunt, the answer is no, because a brother's daughter is not an heir at all. She also does not have the right of kinship (dhawu al-arham) due to the presence of a daughter for the deceased. However, if your father died after your paternal aunt, and he was an heir to her but had not received his share, then his share transfers to his heirs, and you are among them. To accurately determine how the inheritance is divided, all heirs must be identified through the designated link.