His brother and Regent Duke Ernest Frederick was known more for the perilous finances of his Duchy, which underwent from 1773 onwards a forced management of debts by an Imperial Debit Commission until 1802 and affected the fortunes of his successors.
Tema vend ja regent-hertsog Ernst Friedrich oli rohkem tuntud hertsogkonna ohtliku rahanduse poolest, mis läbis alates 1773. aastast sunnitud võlgade juhtimise keiserliku deebetikomisjoni poolt aastani 1802 ja mõjutas tema järglaste õnne.