And yet leia said that she died when she was very young and NOT that she died when she was born ( which is how anyone would have talked if their parent had died in childbirth) . And that is because Leia’s mother WAS still alive during the first few years of her life when Jedi was written. Silly excuses cannot hide the fact that George forgot his own films and screwed up when doing the prequels.
I always thought Leia was talking about her adopted mother here, and that she probably thought she was her “real” mother, not knowing she was adopted. Considering Leia has no idea she has a brother and her dad was freaking Darth Vader, it wouldn’t make much sense at all for her to be actually living with or in contact with her actual mother. Otherwise, how would Darth Vader possibly not know about Leia? Only possible way for that to work is if Vader had like a one night stand with Luke and Leia’s mom and never spoke to her again lol.
Whatever, Leia being Luke’s sister is a silly idea to begin with.