Soak strawberries in orange juice and either curacao or cointreau top it with whipped cream you have a dessert named for what royal family?

The dessert you described is a classic French dessert called "Fraises Romanoff", named after the Romanov family, the last imperial dynasty of Russia.

The dish is believed to have been created in the 19th century, likely in honor of Tsar Alexander II or one of his relatives.