To make Ginger Simple Syrup, place water, sugar and ginger root in a small sauce pot and bring to a simmer. Stir for 60 seconds or until sugar dissolves. Remove from heat and let ginger steep while syrup cools.
Place white wine in a large pitcher and add in orange, lime and lemon juice. Add additional orange, lemon and lime slices to the pitcher for garnish and added flavor.
Once ginger simple syrup has cooled, strain ginger root from the mixture and add the syrup to the pitcher of wine and citrus juice. Stir well and let mixture chill for 4 hours or up to overnight.
To serve, pour mixture over ice until glass is 3/4 full. Top each glass with ginger beer before serving.