Career
As a supporter of prince William III of Orange, he was appointed in 1672, the Year of Disaster after the First Stadtholderless Period, when the Dutch Republic was in danger. The family De la Faille or Della Faille has its origin in Antwerp, some say in Naples and traded on the Levant already in 1540. The family split when around 1585 some members emigrated to the North of the Netherlands, c.q.
His father was Barnardus la Faille living in Den Haag, a sort of accountant for the stadholder Maurice of Orange.
Very little is known of Johan"s life, he probably studied law, and visited France and Italy (1667). Johan married on 28 January 1671 with Anna (Margaretha) Delff, (1647–1715).
The couple had four children: Johan Bernard, Cornelis, Abraham and Elisabeth. He was bailiff in Delft between 1680 and 1713.