The dispute was between a British company (British South Africa Company vs a Portuguese company (Compania De Moçambique). This dispute was centred on a large territory of land called Manica.
Companhia De Moçambique, The Portuguese company, complained that they owned the land and had mineral rights to it. They also stated that the British company invaded, entered and took possession of the said lands, mines and mining rights, and ejected the plaintiff company.
It was held that the Portuguese company was not entitled to maintain its claims in the English courts, for that would be to try a question of title to foreign land.
This case established the Moçambique Rule/ Mozambique Rule which renders the actions relating to title to foreign land, possession of foreign land and damages of trespass to foreign land non-justiciable in common law jurisdictions.