This is an adaptation by Anne Plumptre of August von Kotzebue's La Pérouse .
This is an adaptation by Thomas Holcroft of Bouilly's L'Abbé de l'Epée , which was itself an adaptation from August von Kotzebue.
This was an adaptation by Charles Kemble's of his own The Wanderer; or, the Rights of Hospitality (1809), which was itself an adaptation of August von Kotzebue.