Yes. “Rajul Mata” is Rajimati (Rajul), the betrothed of Lord Neminath (22nd Tirthankar). On seeing Neminath renounce worldly life for ahimsa, she too accepted Jain diksha and lived as a revered Jain sadhvi (Sati Rajulmati).

• Shwetambar and Digambar traditions both honor her as an ideal, chaste Jain nun.
• On her final attainment, traditions differ:

- Some Digambar accounts say she attained moksha at Girnar. - Many Shwetambar narratives say she led a nuns’ order devoted to Neminath and later attained a high heavenly state.

For a simple retelling and site references:

• Story of Neminath and Rajimati
• Girnar tirth and notes on Rajulmati’s attainment