Question from Arthur - Seating arrangements at early Tudor feasts

Hi, I have a question about feasts in the early tudor period.I just watched the TV A Tudor Feast and I have a few questions I wondered if someone knew the answer too.

Who exactly sat at the top table, I know the lord did but who else? If the lord has several sons and daughters and they are all adults or teens where do they sit? Also if there is visiting nobility of a higher status do they get the prim place at the top table in place of the lord? And lastly in the case of a wedding feast do the couple occupy the head table too?

I am writing a novel and want to try and get things as accurate as possible..thanks.