Older than old ..., New Town, Prague

One of the places visited by tourists is the Old Jewish Cemetery in Prague. It was founded in the 15th century. But the Jewish community existed here as early as the 10th century.
Where did the Jews bury their dead?
In the 13th century there was a cemetery from which I show a photography. From the so-called Jewish Gardens. King Vladislav II abolished them. When you enlarge a photo, you'll learn more. King needed a new place to build a residential homes.
But even this cemetery is not the oldest ...