Charles Spencer Honors Princess Diana on Death Anniversary Ahead of New Memoir

August 31 remains a day of profound personal sorrow for Charles Spencer. The 62-year-old Earl paid tribute to his late sister, Princess Diana, marking 29 years since the beloved royal family member lost her life in a tragic Paris car crash at the age of 36. Taking to Instagram, Spencer posted a solemn picture featuring a flag lowered to half-staff over Althorp House, the historic United Kingdom estate where he and Diana spent their childhood years. He accompanied the quiet image with a short, powerful message, writing that August 31 is his least favorite day of the entire year.

The emotional online tribute arrives just weeks before Spencer is set to release a new memoir dedicated entirely to his royal sister. The book, titled *Swan Song: Diana, My Sister*, is scheduled to arrive on store shelves on September 22. According to publisher announcements, the narrative aims to deliver an unfiltered, authentic look at Diana’s life from her brother's intimate point of view. Spencer hopes to capture the spirit of his sister in a glowing light, drawing parallels to his intent when he spoke at her funeral almost three decades ago.

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In promotional materials for the literary project, Spencer noted that his primary objective is to speak truthfully on Diana's behalf. He emphasized his desire to present an openly uplifting account of her character, echoing the protective stance he publicly took during her high-profile memorial service. The author added that he crafted the material for readers across all generations, hoping it resonates with the millions of royal fans who continue to treasure Diana's vibrant memory. The late Princess of Wales is survived by her two sons, Prince William and Prince Harry, whom she welcomed during her marriage to King Charles III. Nearly three decades after her tragic loss, her family members remain committed to preserving her human story and immense global influence.