Just read this part of the article
Padmavati here is used for his first wife who name is not know.
Now I am quoting the "summary" of the blog that you provided as one of your sources:
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Summary
With this knowledge, the sequence of events that transpired in the conquest of Chittorgarh can be updated:
"Amir Khusrau informed Alauddin of the Chittor fort and how the queen of that fort, Padmavati, along with the people of Chittor were infidels and did not worship Allah. Upon hearing that Chittor was plagued by religious infidelity, on 8th Jumda II 702 A.H. (January 27 1303), Alauddin Khilji took his crescent banner (i.e. Islamic banner) from Delhi to Chittor with the intention to conquer the fort and convert it to Islam. Upon reaching Chittor, Alauddin Khilji. Upon reaching the Chittor fort, Alauddin Khilji set up tents for his army, and then attacked the fort on both sides, using the left and right wings of his army. For the first two months, Alauddin Khilji's army attempted to assault the fort using swords, and then, when that failed, they tried to hurl stones at the fort. However, these initial endeavors to capture the fort were in vain, as the fort was up on a very high elevation, giving the Rajput defenders a geographical advantage! Seeing this failure in the first 2 months, Alauddin Khilji then decided to use catapults. Every day, Alauddin Khilji, stood on the mountain named Chitrori/Chatarwari, and himself took a proactive role in the conquest of the fort, by monitoring the way the Eastern portion of his army drew the catapults towards the fort. After approximately 6 months of the siege, Alauddin and Ratnasimha decided to enter peace negotiations so that they could find a way to end the siege. For the purposes of peace negotiation, Alauddin Khilji entered the fort of Chittor, along with his messenger, Amir Khusrau, on 11 Muharram A.H. 703 (August 24 1303). The details of the peace negotiations that went on in the fort are not known to us. However, after these discussions were over, and Alauddin was leaving the fort of Chittor, he captured Ratnasimha and took him to Delhi, where he was held captive in his fort. He then sent Amir Khusrau as his messenger, to Chittor, ordering Padmavati to submit to him personally, in Delhi, where her husband was held captive. Padmavati tried to employ diplomacy and offered gifts to the Sultan... But to no avail... Alauddin Khilji was not ready to accept anything less than the personal submission of Padmavati. As a result, Padmavati personally submitted to the Sultan, in Delhi, and then willingly converted to Islam. Following this, due to her love for the Sultan, she then willingly became his concubine. Subsequently, Alauddin Khilji freed Ratnasimha, on the condition that he would roam from one city to another, like a monkey, and not interfere in the affairs of Chittor.Since even after being freed by Alauddin Khilji, Ratnasimha did not return to Chittor, the royalty of Chittor concluded that he had abandoned the defence of the Chittor fort, like a coward, and hence the defence of the fort was taken up by Laksmasimha. At this time, although Alauddin had done away with Ratnasimha and had Ratnasimha's queen in his harem, he still did not have control of the Chittor fort. Hence, in a subsequent year, likely A.H. 708, he again attacked Chittorgarh. Chittorgarh was successfully conquered on the 9 Muharram of the next year (i.e. 9 Muharram A.H. 709 - June 18 1309), and the 30 000 Rajput warriors of Laksmasimha that resisted Alauddin were slain. No Jauhar was performed by the Rajput females, and hence chances are there that the female Rajput royalty were captured by Alauddin Khilji. However, there is no guarantee that this was the fate of the females in Chittorgarh, because Amir Khusrau does not explicitly mention the fate of the Rajput females in the fort. Neither does he mention whether or not any slaves were taken after the fort was captured. After conquering the fort, it was entrusted to Alauddin Khilji's 15 year old eldest son, Khizr Khan. Subsequently, the fort was named Khizrabad, and Chittor was converted to Islam. Then, the Islamic army halted on the day of Ashur (10 Muharram) in Chittorgarh for their fast, and subsequently, after that day, they departed from Chittor to return to Delhi."
So, this is the true story of Padmavati!
Of course, I don't expect that any director in the future would dare to depict this in the form of a movie, considering how intolerant some Indians have become. We can already see the violence perpetrated by Rajput groups, based on mere rumors that Bhansali was planning on inserting a dream sequence involving Padmavati romancing Alauddin Khilji into the movie. God knows what would have happened if they had shown a full fledged love story between Padmavati and Alauddin. After all, according to the Solomon-Bilqis narrative, Bilqis saw an illusion of her throne/palace with Solomon, which evoked, in her, attraction towards him, and as a result, she
willingly submitted to him, converted to Islam, and became his concubine. The fact that Solomon accepted her despite her ugly, hairy shins (acc. to
al-Tabari) would have enhanced the tender love she possessed for Solomon. Since Amir Khusrau compares Alauddin to Solomon and Chittor to Sheba, he suggests that the queen of Chittor's fate was similar to that of the queen of Sheba. Hence, Padmavati, the queen of Chittor, found something appealing/attractive in Alauddin, just as Bilqis, the queen of Sheba, did in Solomon, and as a result of this attraction/love, Padmavati willingly accepted Alauddin as her Lord!
Just as Bilqis fell in love with Solomon, so did Padmavati fall in love with Alauddin!
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We are not discussing here what was the real name, or nick name or imaginary name of Queen Padmini. However the name of Queen Padmini is mentioned in the floowing:
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The first reference of Rani Padmini’s name appears in
Chitai Charit (c. 1526) written by Narain Das at Sarangpur during the regime of Salhadi Purbiya. Verse 455 and 456 mentions three contemporary historical royal ladies, Deval Devi of Ranthambhor, Padmini of Chittor and Chhitai of Devgiri who were coveted by the Delhi Sultan. The verses say:
रंथम्भोर देवल लगि गयो, मेरो काज न एकौ भयो.
एउ बोलइ ढीली कउ धनी, मइ चित्तोर् सुनि पदुमिनी. 455
बंध्यो रतन सेन मइ जाइ, लइगो बादिल ताहि छ्डाइ.
जो अबके न छिताइ लेऊ, तो यह सीसु देवगिरि देऊ. 456
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So back to my original question: Was the wife of Ratan Singh fictitious or did the famous beautiful queen of Ratan Singh (whom we call Padmini) fall in love with Khilji and became his concubine willingly, as claimed in the blog post that you mentioned as one of your sources?