Summary
Private letters from Princess Diana to actor Terence Stamp are going on sale.
The correspondence from 1991 reveals their friendship and touches on royal life and mental health.
The letters include humorous cards with risqué jokes and references to their shared interest in astrology and caviar lunches.
AI-generated summary was reviewed by a CNN editor.
London —
Private letters from the late Princess Diana to actor Terence Stamp, who died last year, are going on sale, revealing…