Author John L. Van der Heyden writes: "On the 14th of August 1996 I decided to start a Dutch-English family company 'Van der Heyden/Spencer' as from the day of Princess Diana's divorce - 28 August 1996 - under the name 'Instituto Cervantes'. As from that day I became Her personal advisor. I proposed a marriage to Her on 28 December 1996, starting on 28 September 1997. She was kidnapped in Paris exactly four weeks before."