Complex sentence: By late spring 1868, having been informed by the Colonial Office in London that their government had no power, and compounded by misappropriation of tax funds and a botched treason trial the Republic of Manitoba collapsed before it had a chance to blossom.
Split into simpler sentences: By late spring 1868, the Republic had been informed by the Colonial Office in London that its government had no power. The Republic of Manitoba collapsed before it had a chance to blossom.