Home Entertainment Royalty London cafe keeps Dianas memory alive 20 years on Café Diana is a charming little cafe in Notting Hill dedicated to Princess Diana, who was a frequent visitor and supporter since the opening in 1989. IBTimes UK August 29, 2017 23:23 IST Close Café Diana is a charming little cafe in Notting Hill dedicated to Princess Diana, who was a frequent visitor and supporter since the opening in 1989.