sentences:  In 1723, he lost a great deal of money and was left burdened in debt following the spectacular investments and subsequent financial collapse known as the South Sea Bubble.He vowed to repay all his debts, and did so before he died, but meanwhile had to flee from his debtors to Ostend in Belgium.This was then part of the Austrian Netherlands, where Campbell helped the Austrians in their attempts to set up an Austrian rival to the British East India Company.