The second fire was in 1897, from an unknown cause.

There is a question as to whether he had a son, but soon his wife died, probably about 1890, of an unknown cause.

She did not have any children with the king and died of unknown causes.

On the 26th of February 2005 he died from an unknown cause.

She was between 20 and 30 years old at the time of her death from unknown causes.

The child later died in a hospital bed from unknown causes.

He died on October 12, 2011 from unknown causes at the age of 79.

It may be an illusion of some unknown physical cause.

The stage I patient died 8 years after diagnosis from an unknown cause.

He has lost sight in his left eye, through causes unknown.