The Duchy of Lancaster, which has its headquarters in London, manages the monarch’s private estate to generate the Queen’s income. According to its website, the Duchy's gross income from its investment portfolio was 2.73 million pounds ($4.6 million Cdn) for the year ending March 2017. The Duchy says it still holds the Dover Street investment, which is expected to mature in two to three years. It's not clear how much income the Duchy generated in the years it has held the investment. But as part of her personal fortune, the Queen has a whole other separate and sizable investment portfolio.

Source: CBC News November 05, 2017 18:00 UTC