Rare Rembrandt portraits worth millions found in private collection.

Two previously unknown portraits by Rembrandt, depicting an elderly couple related to the Dutch master by marriage, have been discovered in a private collection in the UK. The paintings are expected to sell for between £5 million and £8 million ($6.25 million-$10 million) at auction. The artworks have a “remarkable, virtually unbroken line of provenance” and are set to go on show in New York and Amsterdam next month, before returning to London for a pre-sale exhibition and the auction on July 6.