[1] He may have trained as an illuminator and painter in France or the Netherlands, and later worked in Münster, before joining in St John's Priory in Hamburg by 1424 at the latest.
[2] Two main altarpieces attributed to him survive, dedicated to St Thomas of Canterbury and Saint Barbara, in an unusually intense style, showing awareness of French and Early Netherlandish court art.
[3] The Hamburg association of traders to England commissioned an altarpiece from "Mester Francke[nn]" in 1424; the contract does not survive, but is mentioned in their memorial book.
The "Barbara Altar" has also eight scenes, on both sides of the wings to a carved wood central panel by another artist.
[2] Francke was almost entirely forgotten after the Renaissance until the end of the 19th century when, like Master Bertram, he was rediscovered and published by Alfred Lichtwart, Director of the Hamburg Kunsthalle.