New Delhi, June 19 -- Prince Harry and Meghan Markle's dramatic exit from royal life in 2020 may have had less to do with family tensions and more to do with money and personal ambition, according to royal biographer Valentine Low.

In his book Courtiers, Low claims the couple left the British monarchy not just for privacy, but for the freedom to build their brand, explore political engagement in the US, and-most significantly-generate independent wealth, the New York Post reported.

The Duke and Duchess of Sussex, who relocated to California shortly after stepping back from their royal roles, reportedly found the constraints of royal protocol incompatible with their personal and professional aspirations. According to Low, Meghan's desire...