So, how do we know that Leia's not talking about Breha? Everyone seems to assume she's referring to Padme, but where is it stated that Breha didn't die when Leia was a young child? Most stories that feature Leia prior to ANH feature Bail only, and he seems to either be a widower or possibly married to someone who takes a very hands-off approach to Leia.LUKE: Do you remember your mother? Your real mother?
LEIA: Just a little bit. She died when I was very young.
LUKE: What do you remember?
LEIA: Just images, really. Feelings.
LUKE: Tell me.
LEIA: She was very beautiful. Kind, but sad.
I dunno, to me, the only way any of it makes sense is if Leia thinks Breha was her biological mother and she was raised by either a later stepmother or a servant. From what little we see of Breha, she seems like she could fit the very beautiful, but sad description.
I just cannot at all overlook the assumption that Padme pops out a six-month-old baby (with none of the associated goo), and it's even more laughable that this baby, no matter how Force sensitive, could remember this mother from a few seconds immediately after her birth.
So, to me, the "real mother" isn't really the real mother Leia thinks she is. It's Breha, not Padme. Anything that states otherwise, I'll ignore like The Clone Wars and Legacy.