The Bancrofts are the former owners of the WSJ, and still own the Duke’s old house in RSF too.
This house has 10,651sf on 5.68 acres, listed for $6,995,000 (click here for map):
http://www.sdlookup.com/MLS-110062313-6605_La_Valle_Plateada_Rancho_Santa_Fe_CA_92067