Complex sentence: She died at the age of 58, ostensibly from a heart attack, though it is thought she may have taken an overdose, and was buried in Pinner Cemetery in north London, with Eliot in attendance.
Split into simpler sentences: She died at the age of 58, ostensibly from a heart attack, though it is thought she may have taken an overdose. She was buried in Pinner Cemetery in north London, with Eliot in attendance.