It is possible that Edwin was Æthelstan's official heir, but in the early 930s he seems to have rebelled.

I could formally adopt him and designate him my official heir.

Regis promised me he would arrange it, after young Danilo was made the official heir.

And from the day your father decided to make you his official heir, I was horrified that the future Marquis of Haverston.

The PRI sees itself as the official heir to Mexico's 1910 social revolution.

Not entirely, for he was still the official heir to Hastur.

If he designated the child as his official heir, perhaps Kailea would warm to him.

As the official heir to the head of the Honinbo house, Shusaku had an eminent position.

He died young, before an official heir had been appointed.

He was adopted by Claudius in AD 50 as official heir to the throne.