So confidential were the relations between them that Gustavus sent for de Geer to his camp at Kitzingen for a personal consultation on business matters in the spring of 1632.

It was their last interview, for before that year closed the Swedish hero was to perish at Luetzen.
The death of Gustavus made no difference to the position of Louis de Geer in Sweden, for he found Axel Oxenstierna a warm friend and powerful supporter.

Among other fresh enterprises was the formation of a Swedo-Dutch Company for trading on the West Coast of Africa.

In this company Oxenstierna himself invested money.

In reward for his many services the Swedish Council of Regency conferred upon de Geer and his heirs a patent of nobility (August 4,1641); and as part repayment of the large loans advanced by him to the Swedish treasury he obtained as his own the districts containing his mines and factories in different parts of Sweden, making him one of the largest landed proprietors in the country.