She was a philosophy student of Dietrich’s for several years before the pair were married in 1959. 

Von Hildebrand spent the majority of her career teaching philosophy at Hunter College in New York City, beginning in 1947. Though she described the secular college as radically anti-Catholic, von Hildebrand was well-liked among her students and even inspired several of them to conversion. 

“In secular universities, the word 'objective truth' triggers panic,” she wrote in her autobiography. "God said, 'I know you do not belong there,' as my colleagues repeated time and again. 'But, I have work for you to do, and you cannot do it on your own. I will help you.'"

In 1984, von Hildebrand retired from Hunter College after 37 years and she was awarded the college’s Presidential Award for excellence in teaching. 

Von Hildebrand published several books during her lifetime including “The Privilege of Being a Woman” and “The Soul of a Lion: The Life of Dietrich von Hildebrand.” She also wrote countless articles and essays and helped launch the Hildebrand Project to promote her late husband’s work. 

She was a frequent contributor to Catholic News Agency and made more than eighty appearances on CNA's parent company the Eternal Word Television Network (EWTN).  

“We are grateful for the many contributions she made to Catholic thought and for the many programs she made for EWTN over the years,” said EWTN Chaplain Father Joseph Wolfe. “May she enjoy her eternal reward and the joy of being reunited with her dear husband Dietrich, whom she so admired.”

Alejandro Bermudez, executive director of Catholic News Agency and ACI Prensa, called von Hildebrand an “exemplary, happy warrior” for the Church.

“She not only made more than 80 appearances on EWTN, but left probably her most important body of essays in the set of articles she wrote exclusively for CNA,” Bermudez said. You can read her work for CNA here.

In a 2014 interview with CNA, von Hildebrand reflected that her life looked radically different than the one she expected. 

"God has chosen the pattern of my life - totally different from what I had imagined. I feel like the female Habakkuk brought into the lion's den," she said.

When I look back on my life, the words that come to my mind from my heart are: misericodias domini in aeternum cantabo," citing Latin words from the Psalms which translate to "I will sing the mercies of the Lord forever."

Funeral arrangements have yet to be announced. --CNA