About Bael, Baal And Beelzebub

¿Are these different names for the same entity? ¿Or they are just seperated beings whit some kind of relation? I was thinking very much about Beelzebub lately, but in evocation field the more i search more i get of Bael, ¿are they just the same?

Of the various Baals (“Lords”: Baalberith, Belial, Belphagor…), theoretically Bael is a king while Beelzebub a prince, and for the first no connection with flies (which maybe are to be taken also literally) is mentioned. Perhaps different spirits.

Baal/Bael same individual but Baal is also a title. Beelzebub is not Baal/Bael but he is a Baal by title.