The most prominent accomplishment of William George Monckton-Arundell as obtaining a Royal Liscence in 1826 which allowed him to stop using the name Arundell before his titles of honour. Any successors to the Peerage could continue to use Arundell if they wished, but younger children could only use Monckton for their last name. In 1812 he had Serlby Hall renovated. In 1804 he married Catherine Handfield, and they had several children.