Among the guests for the service were Diana's siblings Lady Jane Fellowes and Earl Spencer, and former army officer Mark Dyer, who acted as the Duke's mentor and played the role of a supportive big brother to Harry after the Princess's death .
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Among the guests for the service were Diana's siblings Lady Jane Fellowes and Earl Spencer, and former army officer Mark Dyer, who acted as the Duke's mentor and played the role of a supportive big brother to Harry after the Princess's death .