Death in childbirth has long been a favorite fictional plotline, most recently bringing shocked viewers to tears in Sunday's episode of Downton Abbey, when Lady Sybil apparently suffered "toxemia of pregnancy" (what we now call eclampsia), after giving birth to her first baby.
Lady Sybil joins a long line of mother characters who have fallen to a similar fate, from Padme Amidala gasping her last while giving birth to Luke and Leia to Demi Moore giving up the ghost in the howlingly dreadful The Seventh Sign.
Jane Austen didn't live through our modern-day examples, but she mocked the convention as early as 1818, saying that Northanger Abbey's heroine, Catherine Morland, didn't have the makings of a heroine because:
Her mother was a woman of useful plain sense, with a good temper, and, what is more remarkable, with a good constitution. She had three sons before Catherine was born; and instead of dying in bringing the latter into the world, as anybody might ...1