Original sentence: Following his death  in 1893, he was of course cremated on a pyre of coal in accordance with his will.However shortly before his death at the age of 92 he fathered a second son and daughter with his then partner, Gwenllian Llywelyn
Edited sentence: Following his death  in 1893, he was, of course, cremated on a pyre of coal in accordance with his will.However shortly before his death at the age of 92 he fathered a second son and daughter with his then mistress, Gwenllian Llywelyn