Does the grandfather need to seek permission for the marriage of his son's daughter?

The questioner : ... Does the grandfather need to seek permission?

The Shaykh : No, it is only the father. The father from the direct line is the one who has this status, whereas the grandfather is of the same category as the other guardians. He seeks her permission for the marriage, meaning the grandfather does not force her. As for the father, according to the correct opinion, he also does not force her, but according to the school of thought, he forces her if she is a virgin.