Matthias Mutzenbecher

Name and years of birth/death/marriage from hand-drawn family tree (see Media tab in grandson Johann's profile) which also states he was a Merchant of Hamburg.

This source http://jennus.beepworld.de/mutzenbecher.htm confirms he was born in Trittau in 1714 and describes him as a broker and co-founder of der "Patriotischen Gesellschaft Hamburg". It provides the name of his wife and her parents.