 In 1550, Charles convened a conference at Valladolid in order to consider the morality of the force used against the indigenous populations of the New World, which included figures such as Bartolomé de las Casas.Charles V is credited with the first idea of constructing an American Isthmus canal in Panama as early as 1520.After the death of his paternal grandfather, Maximilian, in 1519, Charles inherited the Habsburg Monarchy.