He is due a day later at a NATO summit split between Strasbourg and Kehl, a town in south-western Germany, that will mark the alliance's 60th anniversary.
Nursing professor Karen Kehl, in an article called "Moving Toward Peace: An Analysis of the Concept of a Good Death, " ranked the attributes of a graceful death, among them: being comfortable and in control, having a sense of closure, making the most of relationships and having family involved in care.