...in connection with the redemption of the Nordbanken mortgage during 1993..
fastighetslån: is where you use the property as security,
mortgage: "an agreement under which a person borrows money to buy property, esp. a house, and the lender can take possession of property if the borrower fails to repay the money" (ref below)
..under 1993: this implies that the mortgage was gradually redeemed, and I would accordingly use the english word [during] to reflect this.
Collins, New english dictionary,
Local time: 02:47
Native speaker of: Swedish
PRO pts in pair: 450