The Prince of Wales is (the) 'heir apparent' to the throne of England.
The coach named her assistant as her 'heir apparent'.
She is the sole 'heir to' her family's fortune.
(..) who crippled my son? I want you to serve the realm! Tell the queen you will confess your vile treason, tell your son to lay down his sword and proclaim Joffrey as the true heir. Cersei knows you as a man of honor. If you give her the peace she needs, and promise to carry her secret to your grave, (..)2011 TvShow: Game of Thrones Title: Baelor Season: 1 Episode 9
(..) Lord Stannis has the best claim to the throne. He is a proven battle commander and he is utterly without mercy. Stannis Baratheon is Robert's true heir. The throne is his by rights. Sansa pleaded so sweetly for your life. It would be a shame to throw it away. Cersei is no fool. (..)2011 TvShow: Game of Thrones Title: Baelor Season: 1 Episode 9