During the 1650s, De la Gardie engaged in banking activity and competed with her competitor, Stockholms Banco, by taking up large loans in the bank and then using the sums by lending it to the customers in her own bank: this was initially very lucrative, but eventually, problems enabled the Stockholms Banco to confiscate and sell her banking security.Du Rietz, Anita, Kvinnors entreprenörskap: under 400 år, 1. uppl., Dialogos, Stockholm, 2013
