Natasha Richardson, a Tony Award-winning actress whose career melded glamorous celebrity with the bloodline of theater royalty, died Wednesday at Lenox Hill Hospital in New York City. She had suffered head injuries in a skiing accident Monday north of Montreal, and was flown to New York on Tuesday. Her recent film features were Walt Disney's The Parent Trap and Maid in Manhattan.

She was 45 and lived in Manhattan and in Millbrook, N.Y. She is survived by her husband, the actor Liam Neeson, and their two sons, Micheal Richard Antonio Neeson, 13, and Daniel Jack Neeson, 12, as well as her mother, her sister, a half-sister, Katherine Grimond, and a half-brother, Carlo Sparanero, also known as Carlo Nero, the son of Ms. Redgrave and Franco Nero.