Mabruenia was founded on Janurary 12th, 2023, by Her Majesty, Queen Amara I, who was originally the President of the nation. The nation was founded as a result of her being inspired by another nation named Imperium Discordiae, which sought to claim unclaimed islands in the pacific ocean. Mabruenia was originally founded as a Republic, named the Republic of Mabruenia, and was one until Septemebr 29th, 2024, where it would become the Grand Duchy of Mabruenia, and later in 2025, would become the Gaelic Kingdom of Mabruenia, after Her Majesty Amara would find out that she had ties to the Fleming Clan in Scotland, as a result of the marriage of Janet Stewart, the daughter of King James IV to Malcom Fleming..