Sienna Miller's sister Savannah, 42, announces engagement to wealthy aristocrat Jim Whewell

The fashion designer, 42, shared sweet photo to Instagram with her fiancé - who is heir to the 800-acre Wyresdale Park Estate in Lancaster.

Sienna Miller - Latest News and Updates on the British-American

Sienna Miller's sister Savannah reveals she's going 'full on' for

Pick Up Lines At The Mall Tinder Date To Relationship – KAR

Sienna Miller's fashion designer sister Savannah, 43, marries

Sienna Miller - Latest News and Updates on the British-American

Sienna Miller's sister Savannah, 42, announces engagement to

Princess Maria Laura of Belgium, 33, announces engagement to British investment banker William Isvy

Sienna Miller's fashion designer sister Savannah marries wealthy

Sienna Miller - Latest News and Updates on the British-American

Sienna Miller's fashion designer sister Savannah, 43, marries

Sienna Miller - Latest News and Updates on the British-American

TALK OF THE TOWN: New love for Sienna Miller's sister Savannah as