BUCHAREST, Romania — It has been a busy few years for royal remains. In 2012, King Richard III’s bones were found under a parking lot in Leicester, England, and reburied in March. In September, the Russian authorities exhumed the bodies of Czar Nicholas II and Empress Alexandra for new DNA tests. Last week, the Russians said the body of the czar’s father, Alexander III, would be dug up for testing, too.

A few hundred people gathered in the Romanian capital, Bucharest, on Tuesday morning for a less macabre occasion: the final journey of the heart of Marie, the British-born queen of Romania.

The heart, contained in a small silver box, was moved from the National History Museum, where it has been since 1971, to Pelisor Castle, to be placed in the room where she drew her final breath in 1938. Dignitaries stood somberly on the stone steps of the museum. Some in the crowd nearby dressed in traditional outfits, while others waved flags or wore pins with the emblem of the royal family. Some of the queen’s descendants, most of them living overseas, were in attendance.

Queen Marie, a granddaughter of Queen Victoria of Britain, nursed wounded soldiers during World War I and was beloved for her charitable and diplomatic work.