Illegitimate children, adulterous queens, impotent kings, and a whole dynasty resting on their shoulders. Sex and childbirth were quite literally a matter of life or death for the Tudors.
"In bed, meaning giving birth"
As Tudors go, Elizabeth of York is relatively unknown. Yet she was the mother of the dynasty, with her children becoming King of England (Henry VIII), Queens of Scotland (Margaret) and France (Mary Rose) and her direct descendants included three Tudor monarchs, two executed queens, and ultimately, the Stuart royal family.