Exhibit 99.21

MBNA MASTER CREDIT CARD TRUST II

SERIES 1996-L

KEY PERFORMANCE FACTORS
JULY, 1999



Expected B Maturity 12/15/99


Blended Coupon 5.0937%



Excess Protection Level
3 Month Average 6.44%
July, 1999 6.37%
June, 1999 5.31%
May, 1999 7.64%


Cash Yield 18.74%


Investor Charge Offs 4.97%


Base Rate 7.40%


Over 30 Day Delinquency 4.84%


Seller's Interest 9.75%


Total Payment Rate 14.54%


Total Principal Balance $ 45,698,903,036.29


Investor Participation Amount $ 500,000,000.00


Seller Participation Amount $ 4,456,383,517.80