He was matriculated at the
University of Basel in 1656 and studied philosophy and theology, earned the degree Magister Artium in 1660 and was ordained as a Reformed priest in 1665. In the following years he travelled extensively in
France,
Flanders,
Holland and
Germany. Upon his return to Basel, he lectured privately on theology, until he was appointed as court preacher in
Blotzheim in 1669, serving until 1671. He was a
deacon at St. Theodor's Church in Basel 1671–1690 and St. Peter's Church in Basel 1690–1704, before he served as pastor at St. Peter's Church from 1704 until his death four years later. He was the son of Magister Friedrich Seyler (1603–1676), parish priest and rector of the Schule auf Burg gymnasium in Basel. His mother Rosina Stöcklin (1612–1681) was the daughter of the Basel council member Matthys Stöcklin (1577–1649). In 1672, he married Elisabeth
Socin, of an Italian-origined noble family, and they were the parents of Dr.theol. Abel Seyler (1684–1767), parish priest in
Liestal. Friedrich Seyler was the grandfather of the renowned theatre director
Abel Seyler. ==Publications==