They are.Which Catherine and Eleanor? Did I miss something?
Unless we're talking about Catherine of Aragon and Eleanor of Portugal 🙂
Marguerite of Angouleme for Edward of York? Double Anglo-French match, maybe? Or a Howard girl. If Tudor's not alive/Bosworth never happens, the Howard's won't be losing the Dukedom of Norfolk. Maybe the OTL Countess of Ormonde and Wiltshire could become Duchess of York ITTL 😉