Jane Seymour.

 Jane Seymour, Henry VIII third wife, She had one surviving son, and Henry VIII only son Edward 6th, Jane Seymour died of complications (perhaps an infection) not long after Edward was born. Henry VIII was buried beside Jane seymour when he died even though he had 3 more wives after her, he said that Jane was his true wife as she was the only one who gave him a male heir......... how nice he was.