"Throughout luncheon they talked without stopping of Mrs Simpson"
Mrs Wallis Simpson
Public DomainMrs Wallis Simpson - Credit: unknown

Mrs Wallis Simpson was the American divorcée for whom King Edward VIII relinquished the throne in December 1936.

Following the couple's marriage in 1937, she became the Duchess of Windsor.

Presumably, this luncheon conversation takes place during the abdication crisis, the period of constitutional turmoil which preceded the actual abdication.