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Sorry, royal wedding watchers: Prince William and love Kate Middleton aren't announcing their engagement -- or a supposed 2011 wedding -- anytime soon.

A St. James Palace rep is slamming a new report in a German tabloid claiming that William and Middleton, both 28, will announce their engagement this fall and marry next summer; the wedding date, claims the report, will likely be July 2, the same day the Prince's parents Diana and Charles wed in 1981.

"What absolute nonsense!" the rep tells "This is nothing more than speculation."

A source adds of the longtime couple: "Right now there [are] absolutely no wedding plans taking place. That is the truth."