Apparently someone did very little research over at another website and discovered that Padmini was a queen in India about one thousand years ago somewhere near Delhi? But there is another person who was named Padmini long before that I just read about recently. Unfortunately I can't find the spot in the book that I read but I believe it was Lalita Devi who addressed Srimati Radharani as "Padmini" meaning both "lotus" and "fair faced one".
So Srimati Radharani is the original Padmini, not some ksatriya Hindu woman.