31 - William III and Mary (1689)
Number 31 = mat (31 in the Major Number Systems = mat).
William = III = Wimbledon.
Mary II = amnesia.
689 = shove up.
They even put extra mats down by the Wimbledon match so even more people could watch instead of being asking to "shove up." The one contestant seemed to have amnesia because she was paying with oranges.