Thomas Grynaeus grew up the son of a peasant in the Veringendorf, Württemberg. Grynaeus's uncle Simon Grynaeus was a school friend Philipp Melanchthon. Thomas studied Greek and Latin in Heidelberg and Basel and followed Simon Sulzer to the Bern Academy, where he served as professor of Classical languages. He was released from his post for introducing Lutheran views of the Lord's Supper. He moved to Basel served as teacher and later prefect (1547) of the Basel Pädagogium. After the Reformation of the Baden-Durlach by Margrave Charles II in 1556, Grynaeus became pastor in 1558 at St. Gallus' Church, Lörrach and superintendent in Rötteln, where he remained to his death in 1564.
- Thomas K. Kuhn: Thomas Grynaeus in German, French and Italian in the online Historical Dictionary of Switzerland.
- Biography in Melchior Adam, Vitae Germanorum Theologorum. Frankfurt, 1620.
- Gerhard Moehring, Otto Wittmann, Ludwig Eisinger; Geschichtsverein Markgräflerland e.V., eds.1250 Jahre Röttler Kirche: 751–2001, Uehlin, Schopfheim, 2001, ISBN 3-932738-17-9, p. 180.
- Universitätsbibliothek Basel: Griechischer Geist aus Basler Pressen
- Bruce Gordon, The Swiss Reformation (Manchester: Manchester University Press, 2002), 158.
- 1250 Jahre Röttler Kirche, p. 180