Cuypers' ecclesiastical work was initially strongly influenced by 13th century French architecture and by the writings of his friends Eugene Viollet-le-Duc and J. A. Alberdingk Thijm. Cuypers built many churches throughout the Netherlands, in which the French influence played a prominent role. Highlights from these first period are the Lambert's Church in Veghel and the in Eindhoven, among others. From 1870 onwards Cuypers' style became more influenced by the native Gothic styles of the Netherlands as well as Gothic styles from other countries like Norway and Italy. He also experimented with centralizing ground-plans and other non-conventional layouts. In this second part of his career he built some of his best work. After 1883 he was assisted by his son Joseph Cuypers in much of his work.