•Katie Holmes signed a prenuptial agreement which entitles her to $3million for every year of marriage•Entitled to $35million California mansion•Couple's estate is worth upwards of $275millionBy Rachel QuigleyWhen they married to great fanfare and with much opulence in an Italian castle in November 2006, talk not only centered on bride Katie Holmes' wedding dress but also on her prenuptial agreement with the groom.The details? For each year the couple stay married, the Dawson's Creek actress collects $3million - to a maximum of $33 million after 11 years - as well as their palatial home in California.If their marriage had lasted more than 11...