On three occasions Merrick left the hospital and London on holiday, spending a few weeks at a time in the countryside. Through elaborate arrangements that allowed Merrick to board a train unseen and have an entire carriage to himself, he travelled to Northamptonshire to stay at Fawsley Hall, the estate of Lady Knightley. He stayed at the gamekeeper's cottage and spent the days walking in the estate's woods, collecting wild flowers. He befriended a young farm labourer who later recalled Merrick as an interesting and well-educated man. Treves called this "the one supreme holiday of [Merrick's] life", although in fact there were three such trips.  Merrick's condition gradually deteriorated during his four years at the London Hospital. He required a great deal of care from the nursing staff and spent much of his time in bed, or sitting in his quarters, with diminishing energy. His facial deformities continued to grow and his head became even more enlarged. He died on 11 April 1890, at the age of 27. At around 3:00 p.m., Treves's house surgeon visited Merrick and found him lying dead across his bed. His body was formally identified by his uncle, Charles Merrick. An inquest was held on 15 April by Wynne Edwin Baxter, who had come to notoriety conducting inquests for the Whitechapel murders of 1888.  Merrick's death was ruled accidental and the certified cause of death was asphyxia, caused by the weight of his head as he lay down. Treves, who performed an autopsy on the body, said that Merrick had died of a dislocated neck. Knowing that Merrick had always slept sitting upright out of necessity, Treves came to the conclusion that Merrick must have "made the experiment", attempting to sleep lying down "like other people".  Treves dissected Merrick's body and took plaster casts of his head and limbs. He took skin samples, which were later lost during the Second World War, and mounted his skeleton, which remains in the pathology collection at the Royal London Hospital. Although the skeleton has never been on public display, there is a small museum dedicated to his life, housing some of his personal effects.

Answer this question "Was there an autopsy?" by extracting the answer from the text above.
Treves, who performed an autopsy on the body, said that Merrick had died of a dislocated neck.