A bilingual (English/Latin) transcription of a 1426 diplomatic agreement between representatives of King Eric of Norway and King James I of Scotland, concerning territorial matters relating to the Hebrides and the Isle of Man. The document references earlier agreements between Magnus IV and Alexander III (undated), and between Haco V and Robert I (1312). Relevant to understanding pre-Revestment Manx sovereignty and the historical backdrop of competing claims to the island.