Henriette (City of Death)
From Tardis Wiki, the free Doctor Who reference
A Louvre guide was working in the museum in 1979 when the Fourth Doctor and Romana II arrived. The guide was bringing a group of tourists to see the Mona Lisa and had to ask the Doctor to move out of the way so they could see it. This short event was repeated due to Scaroth's time experiments. (TV: City of Death)