Who married Lady Helen Grosvenor?

Lord Henry Seymour married Lady Helen Grosvenor on November 10, 1915. Helen Grosvenor was 27 years old on the wedding day (27 years, 9 months and 5 days). Lord Henry Seymour was 37 years old on the wedding day (37 years, 5 months and 23 days). The age gap was 9 years, 8 months and 18 days.