He amassed a large fortune in Ireland, in which country he had been allotted lands by Cromwell.
Besides the civil list the duke of Saxe-Coburg-Gotha enjoys a very large private fortune, amassed chiefly by Ernest I., who sold the principality of Lichtenberg, which the congress of Vienna had bestowed upon him in recognition of his services in 1813, to Prussia for a large sum of money.
By his energy, industry and sound judgment he gradually enlarged his operations, did business in all the fur markets of the world, and amassed an enormous fortune, - the largest up to that time made by any American.
Even then it appears from his own confession that he long brooded over the chaos of materials he had amassed before light dawned upon it.
Licentious and avaricious, he amassed great wealth; and when he died on the 25th of October 1292 he left numerous estates in Shropshire, Worcestershire, Somerset, Kent, Surrey and elsewhere.