Siege Perilous
In Arthurian legend, the Siege Perilous (Welsh: Gwarchae Peryglus, also known as The Perilous Seat, Welsh: Sedd Peryglus) is a vacant seat at the Round Table reserved by Merlin for the knight who would one day be successful in the quest for the Holy Grail. == History == The English word "siege" originally meant "seat" or "throne" coming from the Old French sege (modern French siège); the modern military sense of a prolonged assault comes from the conception of an army figuratively "sitting down" before a fortress.