He was still in Frankfurt on 2 July 1671 , when he became the godfather of Cornelis Collet .
He was one of a number of artists in Frankfurt am Main who complained about competition by Johann Heinrich Roos .
one was still in Frankfurt on 2 July 1671 , when one became the godfather of Cornelis Collet .
He was one of a number of artists in Frankfurt am Main who complained about competition by Johann Heinrich Roos .