The wedding of Don Carlos, the triplets' older half-brother, and the French princess Elisabeth of Valois was celebrated throughout Europe. When Elisabeth became pregnant, such celebrations only continued. Elizabeth wrote a letter of congratulations, which also included an offer for trading relationships to be built. Her role as regent was less demanding now, as she had formed a council, and more than ever she worked from the convent and took advice from her fellow nuns. If one asked Elizabeth Tudor how she felt about this situation, she would truthfully reply that she had accepted it. Though she often wondered what her own reign would be like, she was content with her peaceful life, and she would never try to usurp the throne of her nephew. She, too, had grown up on tales of her grandmother's uncle, the usurper Richard. Besides, she did genuinely love her nephews and niece. Heaven forbid anyone think she would lock them up in a tower! Her niece, Katherine, had recently said her first word: her aunt's name. She was the quickest to speak out of the triplets, the two sons still communicated mainly by crying and screaming.
(Since Philip II already has three male heirs, he does not need to wed Elisabeth. Plus, remarrying to his son's fiancée RIGHT AFTER his loyal wife gave birth to three children? Yeah...that isn't going to go well...plus, the opera "Don Carlos" portrays their relationship in such a tragic manner that, well, I kind of wanted to butterfly a happier ending of sorts for these two. Even IOTL he always treated her kindly despite his descent into madness.)