A museum in northwest Spain returned two 15th-century paintings to Polish officials on Wednesday after it was determined that they had been looted by Nazi German forces during World War II. The paintings “Mater Dolorosa” (Mother of Sorrows) and “Ecce Homo” were handed over to a delegation from Poland’s culture ministry. According to Spain’s Museum of Pontevedra, the works were originally believed to be by Dieric Bouts, a Flemish master born in the Dutch town of Haarlem, but now they are attributed to a member of his school or group. The museum said that in 2020 Polish officials made it...