LONDON (Reuters) - A London museum has handed back locks of hair cut from the corpse of an Ethiopian emperor during a British invasion 150 years ago, after a campaign by activists seeking the return of hundreds of pieces of colonial plunder.

FILE PHOTO: A traditionally-dressed Ethiopian woman walks past a mural depicting Ethiopia's Emperor Tewodros II in Addis Ababa, Ethiopia, June 1, 2007. REUTERS/Andrew Heavens/File Photo

Ethiopians, many dressed in the national colors of red, gold and green, cheered as staff at the National Army Museum handed over the remains in a black leather box to Ethiopia’s minister of culture, tourism and sport on Wednesday.

Hirut Kassaw will take the hair back to Ethiopia at the weekend where it will eventually be buried at the grave of Emperor Tewodros II at monastery in northern Ethiopia, an embassy official said.

She thanked the museum for its “brave and principled” decision to hand over the hair, but called on it and other British institutions to return other items taken during the Victorian-era expedition.

“For Ethiopians, these are not simply artifacts or treasures but constitute a fundamental part of the existential fabric of Ethiopia and its people,” she said.

There was no immediate response to her request or statement on the return from the museum.

Successive emperors, governments and then activists have called for Britain to hand back crowns, religious regalia and illuminated manuscripts taken after the fight - in campaigns paralleled by Greece’s demands for its Parthenon sculptures, and Nigeria’s for the Benin Bronzes.

The emperor claimed a bloodline dating back to the biblical King Solomon and the Queen of Sheba.

Britain invaded his territory of then Abyssinia in 1867 to rescue a group of European missionaries, adventurers and officials - including the British consul - imprisoned by Tewodros after a series of diplomatic gaffes.

They reached his mountain fortress of Magdala in April 1868, defeated his troops and freed the prisoners. The emperor shot himself as the invaders stormed his last stronghold.

Journalists on the campaign described how soldiers descended on the emperor’s body and tore off strips of his clothing as souvenirs. The museum’s records suggest the hair was taken from Magdala by an artist on the British force.

Institutions including the British Museum have resisted repatriation campaigns citing legislation preventing them from breaking up collections and arguing that they can preserve items and present them to an international audience.

Campaigners have argued that a special case should be made for human remains.