Remember that huge mob the Lannisters get into after sending Myrcella off in "A Clash for Kings" and season two? Well Lollys Stokeworth was there and got raped, unfortunately. She gives birth to a bastard son in "A Feast for Crows" and Bronn, who marries her in the book series but not in the show, names it Tyrion to anger Cersei and honor his friend Tyrion. Cersei is livid when she receives news of it but Jaime laughs it off. In the show Lollys is not pregnant and Bronn's engagement to her is broken off.