Claim: Adam de Coster was originally from Mechelen where he was born in the year 1585 or 1586 and in 1607 he is recorded in Antwerp on his admission as a master to the local Guild of Saint Luke.
Evidence: It is known he was originally from Mechelen where he was born in the year 1585 or 1586 as the son of Jan de Coster and Clara van der Borcht. In 1607 he is recorded in Antwerp on his admission as a master to the local Guild of Saint Luke.