Natasha Richardson, a gifted and precocious heiress to acting royalty whose career highlights included the film “Patty Hearst” and a Tony-winning performance in a stage revival of “Cabaret,” died Wednesday at age 45 after suffering a head injury during a beginners’ ski lesson.

Natasha Richardson, a gifted and precocious heiress to acting royalty whose career highlights included the film “Patty Hearst” and a Tony-winning performance in a stage revival of “Cabaret,” died Wednesday at age 45 after suffering a head injury during a beginners’ ski lesson.

Alan Nierob, the Los Angeles-based publicist for Richardson’s husband Liam Neeson, confirmed her death in a written statement.

“Liam Neeson, his sons (Micheal, 13, and 12-year-old Daniel), and the entire family are shocked and devastated by the tragic death of their beloved Natasha,” the statement said. “They are profoundly grateful for the support, love and prayers of everyone, and ask for privacy during this very difficult time.”

The statement did not give details on the cause of death for Richardson, who suffered a head injury and fell on a beginner’s trail during a private ski lesson at the luxury Mont Tremblant ski resort in Quebec. Seemingly fine after the fall, about an hour later she complained that she didn’t feel well.

She was hospitalized Tuesday in Montreal and later flown to a hospital in New York, where family members had been seen coming and going.

Vanessa Redgrave, Richardson’s mother, arrived in a car with darkened windows and was taken through a garage when she arrived at the Lenox Hill Hospital on Manhattan’s Upper East Side about 5 p.m. Wednesday. An hour earlier, Richardson’s sister, Joely, arrived alone and was swarmed by the media as she entered through the back of the hospital.

It was a sudden and horrifying loss for her family and friends, for the film and theater communities, for her many fans and for both her native and adoptive countries. Descended from at least three generations of actors, Richardson was a proper Londoner who came to love the noise of New York, an elegant blonde with large, lively eyes, a bright smile and a hearty laugh.

If she never quite attained the acting heights of her Academy Award-winning mother, she still had enjoyed a long and worthy career. As an actress, Richardson was equally adept at passion and restraint, able to portray besieged women both confessional (Tennessee Williams’ Blanche DuBois) and confined (the concubine in the futuristic horror of “The Handmaid’s Tale”).

Like other family members, she divided her time between stage and screen. On Broadway, she won a Tony for her performance as Sally Bowles in a 1998 revival of “Cabaret.” She also appeared in New York in a production of Patrick Marber’s “Closer” (1999) as well as a 2005 revival of Tennessee Williams’ “A Streetcar Named Desire,” in which she played Blanche opposite John C. Reilly’s Stanley Kowalski.

She met Neeson when they made their Broadway debuts in 1993, co-starring in “Anna Christie,” Eugene O’Neill’s drama about a former prostitute and the sailor who falls in love with her.

Her most notable film roles came earlier in her career. Richardson played the title character in Paul Schrader’s “Patty Hearst,” a 1988 biopic about the kidnapped heiress for which the actress became so immersed that even between scenes she wore a blindfold, the better to identify with her real-life counterpart.

“Natasha Richardson … has been handed a big unwritten role; she feels her way into it, and she fills it,” wrote The New Yorker’s Pauline Kael. “We feel how alone and paralyzed Patty is — she retreats into being a hidden observer.”

Richardson was directed again by Schrader in a 1990 adaptation of Ian McEwan’s “The Comfort of Strangers” and, also in 1990, starred in the screen version of Margaret Atwood’s “The Handmaid’s Tale.”

She later co-starred with Neeson in “Nell,” with Mia Farrow in “Widow’s Peak” and with a pre-teen Lindsay Lohan in a remake of “The Parent Trap.” More recent movies, none of them widely seen, included “Wild Child,” “Evening” and “Asylum.”

She was born in London in 1963, the performing gene inherited not just from her parents (Vanessa Redgrave and director Tony Richardson), but from her maternal grandparents (Michael Redgrave and Rachel Kempson), an aunt (Lynn Redgrave) and an uncle (Corin Redgrave). Her younger sister, Joely Richardson, also joined the family business.