Refrigerate orange, lemon, lime, wine, rum, and orange juice until cold.
Slice orange, lemon, and lime into thin rounds. Place in a large glass pitcher. Add rum and sugar. Refrigerate to allow flavors to blend, about 2 hours.
Crush fruit lightly with a wooden spoon. Stir in wine and orange juice. Adjust sweetness as desired.
Classic Spanish Sangria · Dinner Match Lab | Dinner Match Lab