On his death the line of the first Earl failed.

He was unmarried and on his early death in 1746 the line of the third Lord failed.

On his death the male line of the Morgan family failed.

Second, other lines failed to take over from those with transmission difficulties.

When his first line of defence failed him, there was too much ground to make up.

On his death in 1912 the line of the sixth Earl failed.

On the latter's death in 1983 this line of the family failed.

On the death of his grandson, the third Lord, the male line failed.

On his death this line of the family also failed.

The male line failed four times during the state's history.