"Christian Francken (Gardelegen c.1550 - Rome? after 1610) was a former Jesuit who became an anti-Trinitarian writer.
In 1577 Francken left his position as professor of the ...
Jesuit college in Vienna and commenced the publication from Basel and La Rochelle of many tracts against the order.François Du Jon in 1584 wrote his Defensio catholicae doctrinae de s. trinitate personarum in unitate essentiae Dei, adversus Samosatenicos errores against Francken. Francken´s printer was arrested in Poland.
On July 9, 1587 Franken was in Prague and introduced to John Dee. Later, on Oct.13 1592, Dee would show Franken´s book of "blasphemie" (Poland 1585) to John Whitgift, the Archbishop of Canterbury, desiring it be confuted." - (en.wikipedia.org 01.06.2020)
