Exhibit 99.21

MBNA MASTER CREDIT CARD TRUST II

SERIES 1996-L

KEY PERFORMANCE FACTORS
AUGUST, 1999



Expected B Maturity 12/15/99


Blended Coupon 5.5179%



Excess Protection Level
3 Month Average 5.86%
August, 1999 5.88%
July, 1999 6.37%
June, 1999 5.31%


Cash Yield 18.20%


Investor Charge Offs 4.78%


Base Rate 7.55%


Over 30 Day Delinquency 4.81%


Seller's Interest 7.19%


Total Payment Rate 14.37%


Total Principal Balance $ 46,158,397,644.87


Investor Participation Amount $ 500,000,000.00


Seller Participation Amount $ 3,316,578,126.38