 Brentano’s lectures in Vienna attracted and inspired an impressive, diverse group of central European intellectuals in the 1870s. Of these, it was Husserl who was to have the widest philosophical impact on the European Continent in the twentieth century, largely because of his influence on thinkers inspired by his phenomenology to explore existentialist themes—Martin Heidegger, Jean-Paul Sartre, and Maurice Merleau-Ponty. Though these are the heirs of Brentano and Husserl on which we will focus here, a full treatment of phenomenological ideas about intentionality and consciousness would need to cast its net much more broadly, covering figures such as: Aron Gurwitsch, Roman Ingarden, Anton Marty, Alexius Meinong, Adolph Reinach, Max Scheler, Edith Stein, Carl Stumpf and Kasimir Twardowski.