Question from Eva - Seymour children birth order

I am hoping to find some Seymour family expert who can advise me on the birth dates of the Seymour siblings. Elizabeth Seymour's DOB, for example, is variously listed as 1505, c.1500-1505, 1510, and 1513. The order of the children seems pretty solidly accepted, but I want to learn more about the lesser known siblings and to start I want to have at least a good idea of their birth dates/relative ages. Can anyone help?

Question from Laura - Elizabeth in the Tower

When Elizabeth was in the tower during Mary's reign, where did she stay? Was she in proper rooms as befitting her station as a princess or was she housed in a cell?

Question from Amber - Elizabeth choice to become "The Virgin Queen"

Almost four years ago I did a high school senior project on Anne Boleyn, and I received such wonderful help from this website. Now, as a senior in college and soon to graduate (in May with a degree in Secondary English Education), I have taken a graduate level course on Renaissance Literature and for my final project I had studied the psychology behind Elizabeth I and her given name The Virgin Queen. I have spent hours in the library, printed articles, and have studied literature that depicts Queen Elizabeth. However, I'm interested in really finding out the impact of Elizabeth's life on her decision to become The Virgin Queen. I know that even today our life experiences as children and teenagers can impact the choices of our adulthood. I guess what I'm looking for is some supporting evidence that through the events of Elizabeth's life (four step-mothers, unsettling experiences with Thomas Seymour, being put in the tower by Mary, etc.) would have impacted her psychologically in some sense. I'm really not asking this for my project, but this project has sparked an immense, sincere interest in learning about Elizabeth's choice to be The Virgin Queen.

I'm really curious in any possible responses, and greatly appreciate them.

Sincerely,
Amber

Question from Lady Domino - Jane Popincourt

When did Jane Popincourt die? (purely curiosity on my part)