On 14 January 1920, aged 44, the former Duchess of Westminster secretly married her private secretary and agent, Captain John Fitzpatrick Lewis, then in his thirties, at Lyndhurst, Hampshire.
She had met Lewis early in the war, while he was being treated at her hospital in Le Touquet.
They had no children.

The former duchess died on 21 January 1970, aged 94.
On 14 January 1920, aged 44, the former Duchess of Westminster secretly married her private secretary and agent, Captain John Fitzpatrick Lewis, then in his thirties, at Lyndhurst, Hampshire. She had met Lewis early in the war, while he was being treated at her hospital in Le Touquet. They had no children.
The former duchess died on 21 January 1970, aged 94.
Constance Lewis