The exterior shots of the royal palace are in fact shots of the Tsaritsyno Palace in Moscow, Russia.
The three main stars have all appeared in royal romances set in fictional small countries which were produced by the Hallmark Channel before. Merritt Patterson was in A Royal Winter (2017), Andrew Cooper was in Royal Hearts (2018), and Brittany Bristow was in Royal Matchmaker (2018).
There is actually no saint called "Senova." It is strictly the brand name of a Chinese-made automobile loosely based on a certain model of the Swedish-made SAAB.
Merritt Patterson and Andrew Cooper were both on the TV show The Royals. She played Ophelia who dated Prince Liam the heir to the throne and he played Beck a Lord who dated Eleanor, Liam's twin sister.