Knowing their March 20, 1969 marriage in Gibraltar would be a major press event, John and Yoko used the publicity to promote world peace. They spent their honeymoon in the presidential suite (then room #902, renumbered #702 during renovations) at the hotel in a "Bed-In" between March 25 and 31, 1969, inviting the world's press into their hotel room daily between 9 a. m. and 9 p. m. Amsterdam art dealer Nico Koster was invited by Lennon himself for a solo shoot. Koster unearthed the lost negatives of these historic pictures in March 2009. The couple were sitting in bed in Room 702 of the hotel in Lennon's words "like Angels", discussing peace with signs over their bed reading "Hair Peace" and "Bed Peace". After seven days, they flew to Vienna, Austria, where they held a Bagism press conference. The hotel and event is mentioned in the song The Ballad of John and Yoko where he mentions Hilton Amsterdam by name and uses the following words: "…the news people said: Hey, what you doin' in bed? I said: We're only tryin' to get us some peace!".