sentences:  Lord Wellesley after threatening to annexing the entire Awadh, concluded a treaty with Saadat on abolishing the independent Awadhi army, imposing a larger subsidiary force and annexing Rohilkhand, Gorakhpur and the Doab in 1801.Before British rule was imposed over Allahabad, the city was conquered by the Maratha Empire.The Marathas left behind two beautiful eighteenth-century temples with intricate architecture.