Oferan Death Rituals

The Oferan have two major death rituals.
For the normal people of the Imperial Oferan Empire when someone dies their body is burnt at sea or in space.
For a member of the ruling family of a Great House the rituals are somehwat different. The body is mummified in the ancient traditions of the Pre-First Empire Tribes and then the mummy tours the Empire, visiting all the colonies of the House so that all can pay homage and grieve.
Exactly one year after their death the mummy is returned to the central home of the Great House, and placed in an oppulant tomb underneath the building in the family crypts. Their coffin is ornately decorated with gold and gems in their own image and their tomb is lavishly decorated by the greatest artisans money can buy and then annointed by Clerics and then Ibudab.