Complex sentence: Andrianjaka fled to Ilafy and from there he attempted to retake his realms seven times but repeatedly failed, and his plot to have Andrianampoinimerina assassinated was thwarted by an informant.
Split into simpler sentences: Andrianjaka fled to Ilafy and from there he attempted to retake his realms seven times but repeatedly failed. Additionally, he orchestrated a plot to have Andrianampoinimerina assassinated, which was soon thwarted by an informant.