Do I have to always obey my father on his decisions in matters of my own children?

Based on quran, sunnah and authentic ahadith (with references) can grandparents enforce decisions in the matter of their grandchildren? E.g. my father is adamant that he will name my child. I want to information backed by Quran, Sunnah and authentic Ahadith to share the extent of what my father can suggest vs who's final authority it is in matters of one's children If I don't accept my father's suggestion and pick a name of my choosing, would I be sinful of disobedience?