FREDERICKSBURG, Va. — Attorneys for L. Douglas Wilder are due in court to respond to the city of Fredericksburg’s plan to sell 38 acres where the former governor wants to build the National Slavery Museum.

A hearing is set for Tuesday morning in Fredericksburg Circuit Court. It’s the latest development in Wilder’s quest to build a museum telling the nation’s history of slavery. Before he can do that, he must settle a large tax bill and get fundraising back on track....