Named after Afanasy Afanasyevich Fet - Russian poet (1820-1892).
Fet is a crater on Mercury that is named for the Russian poet Afanasy Fet, who lived from 1820 to 1892. The diameter of the crater is 24 kilometers. (wikipedia entry)
A crater is a circular depression likely created by an impact event. On Mercury they are named after deceased artists, musicians, painters, and authors who have made outstanding or fundamental contributions to their field and have been recognized as art historically significant figures for more than 50 years.
Image Source. Marker locations are approximate and may not always appear to align with image on map.