How The subject matter of painting done in the grand manner had to be?

The subject matter of painting done in the grand manner typically focused on historical, mythological, or religious themes, emphasizing noble subjects that conveyed moral and civic virtues. Artists aimed to elevate their works by depicting heroic figures and dramatic narratives, often using idealized forms and dramatic compositions. This style was intended to inspire awe and admiration, reflecting the values and aspirations of society at the time. Ultimately, grand manner painting sought to convey a sense of grandeur and importance, both in its subjects and execution.