Lance is the eldest of three children. He has a younger sister and younger brother. His brother is set to inherit everything instead of him. While he has not been outright disowned he is not thought highly by his father an grandfather because of choosing Haillenarte over Dzamael. The only thing expected of him as a child of the Aurifore is to marry well an keep the bloodline strong. (The whole thing with his cousin is something else entirely.)

Thanks! @ishgardian-rose