Who started “Wedding of Prince William and Catherine Middleton”?

Prince William and Catherine Middleton, on TV, Apr 29, 2011. It reached 8 platforms in 11.2 years.

LineageKey steps, 9 of 16. Lines follow time and platform
Royal Household / GoogleBefore the first postAbbey Hosts Royal Wedding | Westminster AbbeyPrince William and Catherine MiddletonFirst postObserved peakPlatform jumpOwner responseCommercialCommercialOwner responseAfterlifePatient zero