Question: What is the birth date of the woman Paul McCartney was engaged to after Linda McCartney's death?

Related documents: [0]  [DOC] Heather Anne Mills (born 12 January 1968) is an English media personality, businesswoman and activist. [END] 
[1]  [DOC] The Driving World Tour was Paul McCartney's first concert tour of the 21st century and of any kind since 1993's New World Tour. For the first time in nearly a decade, McCartney returned to the road following the death of first wife, Linda McCartney, the death of George Harrison, and 9/11. This was in promotion of his 2001 album "Driving Rain". Paul "Wix" Wickens returned on keyboards and is credited as Musical Director. New to the fold were Americans Rusty Anderson, Brian Ray, and Abe Laboriel Jr. Paul McCartney's then-fiancée Heather Mills accompanied him on the tour and was in the audience for every American performance. [END]  
Answer: 12 January 1968
12 January 1968