They became great powers in the money market during the Napoleonic Wars through their dealings with the government.
In 1810, Abraham Goldsmid was joint contractor with the Barings for a government loan, but owing to a depreciation of the scrip, he was forced into bankruptcy and committed suicide.
Sir Julian was for many years in Parliament, and his wealth, ability and influence made him a person of considerable importance.
He had eight daughters, but no son, and his entailed property passed to his relation, Osmond Elim d'Avigdor; his house in Piccadilly was converted into the Isthmian Club.
His reform of the revenue system in Bombay and introduction of a new system, established after his death, through his reports in 1840–1847, and his devoted labor in land-surveys, were considered of the highest importance to western India and established his memory there as a public benefactor.