Question for german speakers

[NeatSquidYT]

Hallo

If I say "I come from <insert> but I live in <insert> with my sister, my dad and my mum" would I then need to use the indefinate dativ case for the people? For example meiner Schwester, meinem Vater und meiner Mutter

[Ekpyrosis]

The case depends on the preposition, in this case I'd use bei or mit which both take the dativ case, so yes.

[NeatSquidYT]

The case depends on the preposition, in this case I'd use bei or mit which both take the dativ case, so yes.

Perfect. Thanks