Matthias Lexer
Matthias Lexer (18 October 1830 – 16 April 1892), later Matthias von Lexer (from 1885), was a German lexicographer, author of the principal dictionary of the Middle High German language, Mittelhochdeutsches Handwörterbuch von Matthias Lexer, completed in 1878 in three volumes. Matthias Lexer received a PhD in a lexicological subject at age 30 in 1860 at the University of Erlangen, where one of his teachers was the historian Karl von Hegel.