Princess Diana 's warmth and charisma made her one of the most beloved figures of the 20th century – but according to one of her closest former aides, there was another, more complex side to the late royal that few ever saw.

RadarOnline.com can reveal Dickie Arbiter, who worked as Buckingham Palace's press secretary and liaised closely with Diana for five years, has described how the Princess of Wales could be "engaging" and "fun to be with," yet also had moments of emotional withdrawal when things didn't go her way.

Arbiter, now 85, first met Diana three days before her wedding to Prince Charles in July 1981, and later detailed his experiences in his memoir On Duty With the Queen. Article continues below advertisement

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