But the firm would not say how many of the others were believed to have died.

His father is believed to have died a year earlier.

They said half of those patients are believed to have died.

He is believed to have died in 1720 at the age of 85.

He is believed to have died in the year of 581.

He is believed to have died in either 1433 or 1439.

He is believed to have died after 27 May 1250.

Only one of the men is believed to have died.

She is believed to have died around the year 946.

He is believed to have died in 375 or 376.