Amid speculation about whether he will live through the elections, there is no clear successor.

When Frederik died, the lack of a clear successor left the country in civil war.

Elizabeth was past the age of childbearing, and had no clear successor.

The lack of a clear successor is another concern.

With no clear successor he continued to exert an enormous influence over the party.

That strategy has also left him without a clear successor.

In some cases there is no clear successor to the rule, and this was one of such eventualities.

And not only has he just made the commitment to stay another five years at the company's helm, there is no clear successor in sight.

The subject has possibilities: Smith died without a clear successor.

After the death of Olua with out a clear successor.