Greek Ambassador, poet, and Nobel Laureate
lived at 51 Upper Brook Street, Westminster, W1According to plaque #1.
"Giorgos or George Seferis (Γιώργος Σεφέρης) was the pen name of Geōrgios Seferiádēs (Γεώργιος Σεφεριάδης, 13 March [O.S. 29 February] 1900 - September 20, 1971). He was one of the most important Greek poets of the 20th century, and a Nobel laureate. He was also a career diplomat in the Greek Foreign Service, culminating in his appointment as Ambassador to the UK, a post which he held from 1957 to 1962....", according to Wikipedia. See full article for more.