Philipp Ruhig
Philipp Ruhig (, ) (March 31, 1675, Kattenau — June 4, 1749) was a Lithuanian Lutheran priest from East Prussia mostly known as a philosopher and philologist, an early expert in Lithuanian language. Major works
1745:  "Betrachtung der Littauischen Sprache, in ihrem Ursprunge, Wesen und   Eigenschaften"
1747: "Littauisch-Deutschen und  Deutsch-Littauischen Lexicon"

References

Further reading
  Ruigys P. Lietuvių kalbos kilmės, būdo ir savybių tyrinėjimas. Vaga: 1986, Vilnius. 484 p. (Lituanistinė biblioteka; preface by Vytautas Mažiulis) 

1675 births
1749 deaths
People from Nesterovsky District
People from the Duchy of Prussia
18th-century German Lutheran clergy
Balticists
Lithuanian language