Her childless death left her brother the king without obvious heirs.
Although there are promising candidates to pick up some of those roles, there is no obvious heir to assume them all.
In that too I saw him as an obvious heir to the boys of the old Paris suburbs'(p. 143).
When Margaret died there was no obvious heir to the Scottish throne.
Having been true to his promise to the Queen's sister through many a long year, the Duke had no children and no obvious heir.
This weakness was compounded by the fact that he did not have an obvious adult heir, Britannicus being just a boy.
Mr. Reed, 56, has been careful, however, not to designate any obvious heirs.
This left the country without an obvious heir, and led to the succession dispute known to history as the Great Cause.
He died in January 1919, leaving no obvious heir to his progressive legacy.
But in Croatia, there is also no obvious heir apparent.