Exhibit 99.1 MBNA MASTER CREDIT CARD TRUST II SERIES 1994-C KEY PERFORMANCE FACTORS April 30, 2001 Expected B Maturity 11/15/01 Blended Coupon 5.2970% Excess Protection Level 3 Month Average 7.64% April, 2001 7.52% March, 2001 7.99% February, 2001 7.40% Cash Yield 19.61% Investor Charge Offs 4.98% Base Rate 7.12% Over 30 Day Delinquency 4.89% Seller's Interest 9.33% Total Payment Rate 13.70% Total Principal Balance $ 58,171,313,434.78 Investor Participation Amount $ 1,000,000,000.00 Seller Participation Amount $ 5,425,622,873.29