Frank Gresham is a fictional character from the novel "The Warden" by Anthony Trollope. He is the son of Mr. Gresham, a wealthy landowner, and is known for his kind-hearted nature and moral integrity. Frank faces challenges in his life, particularly regarding his romantic interests and family expectations. In the story, Frank is in love with Mary Gresham, but their relationship is complicated by social status and financial issues. His character represents the struggles of balancing personal desires with societal pressures, making him a relatable figure in Victorian literature.