For her funeral she was in a lead coffin (covered in purple velvet and a life-like effigy). But she must have had a double coffin (a coffin inside a coffin) because in the 1800's when her tomb was opened it was reported she had a wooden coffin so her wooden coffin must have been inside the lead one, although I cannot confirm this, its only an assumption. its also possible that she had a lead coffin for the funeral and her body was then moved to a wood one later. point being, she had one lead one, and one wood one.
As far as I know, lead is used as a sort of insulator in the coffin. It prevents unpleasant odors for the decomposing bodies to reach other people.
yes
Lead helps delay the decay of the body.
Princess Diana is said to have had one of the coffins typically used for British Royals: an oak coffin in the shape of a hexagon; inside a coffin liner made of lead.
J. Edgar Hoover's coffin was lined with lead to prevent grave robbers from stealing his body due to his high-profile status as the long-time director of the FBI. The lead lining was intended to deter any potential attempts to steal or tamper with his remains.
The funeral director would lead, followed by the coffin then followed by the chief mourners.
I understand the casket was lead-lined, with a glass viewing window. This was discussed during the televised coverage of the funeral. Addition: Diana's coffin was made of oak with an inner metal liner made of lead. The liner had a glass viewing window.
stone coffin in which wood coffin was placed
Napoléon I In the centre of Les Invalides you will find two churches, back-to-back; St. Louis' and the Dome. Captured flags hang in St. Louis'; there used to be thousands more, but they were burned to prevent their recapture in 1814. Under the Dome, in a crypt specially dug and taking up nearly all the floor space, lie the remains of Napoleon I, brought back from St. Helena in 1840. The body is in a tin coffin inside an iron coffin in a mahogany coffin in a lead coffin in another lead coffin in an ebony coffin in an oak coffin in a five-ton red porphyry sarcophagus on a green granite base. That lot ought to hold the little blighter down. Around him are the tombs of his son and the Marshals of France.
coffin
A Coffin