Archie Keswick was spotted out with Sienna Miller in New York this week
The dashing hotelier was dubbed one of Tatler s 50 most eligible bachelors
He has two daughters and is a demon on the tennis court
His father is Simon Keswick, former director of multi-billion pound Hong Kong conglomerate Jardine Matheson - owner of the Mandarin Oriental Hotel Group
The centuries-old practice of aristocratic titles only being passed on to male descendants could be about to come to an end, with several high-society heiresses set to inherit the family land and titles.
Boris Johnson is understood to have ordered the issue of male primogeniture be looked into as part of plans to make Parliament more welcoming to women.
If the practice is abolished, it would mean for the first time first-born daughters would take on their father s peerage instead of younger sons, as seen in shows such as ITV s Downton Abbey.
Here, FEMAIL reveals the stunning socialites who could inherit the family pile, and titles, under the new proposals, including Princess Diana s niece Kitty Spencer and Lady Willa Franks.