Baronet's or 'little barons' are those rich knights, typically holding several manors, who can afford to knight all their children, not just the heirs.
The Harnic Astrology program takes a fully functional and richly detailed Earth-based Astrology Program ("SymSolon") (GNU) and changes the parameters to produce output appropriate for the Harnic Isles and the planet (solar system) of Kethira.