Very sad. I can only imagine the joy everyone (especially in those dark days) would have felt at the birth of a third prince. King Leopold III, in particular, might have greatly benefited from another brother- his relationship with Charles was marked by conflict and tragedy. The story of Elisabeth's wartime miscarriage reminds me of the fourth (unborn) child of Leopold and Astrid, reported by some to have perished along with the Queen at Küssnacht. Again, I wonder what this prince or princess (if he or she really existed) would have been like. Mysteries of Providence!
May this whole family rest in peace.