Bastards

Bastards, otherwise known as an Illegitimate or Natural child.

They are unable to inherit any lands or titles, it may also have consequences for the mother's and child's right to support from the putative father. A bastard whose parents later marry are still bastards, but he'd be able to inherit his father's lands and titles.

Known bastards
Arthfael Drake-Tudor: The bastard son of Arthur Tudor

Henry Fitzroy-Howard: Bastard son of King Henry VIII

Jasper, Beau, Jane, Conall, Seymour, and Barnaby: bastards of Edward Tudor

Artis and Edith Tudor: Bastards of Jane Tudor

St Thomas Fitzroy-Howard: Bastard son of Edward Fitzroy-Howard