Princess Eugenie of York is no longer content with Ivy Cottage, her house nestled in the enclosure of Kensington Palace. In recent years, the young mother has been offering a very private escape in a villa in Portugal, at the CostaTerra Golf and Ocean Club, an ultra-discreet refuge set on the Alentejo coast. She lives there several months a year with her husband Jack Brooksbank and their children in a holiday home that the media estimate around …