Frederick, Prince of Orange-Nassau (English: William George Frederick, Dutch: Willem George Frederik; 15 February 1774 – 6 January 1799) was the youngest son of William V, Prince of Orange and Stadtholder of the Dutch Republic and Princess Wilhelmina of Prussia, sister of King Frederick William II.
Commonly called Fritz inside the family, he chose a military career with the Holy Roman Empire, he died of a fever while serving in Padua, Italy.