Sri Savarindira, also known as Savang Vadhana, was the royal wives, agnatic half-sister and one of the four principal chief consort of King Chulalongkorn, but she was not the Rajini or supreme queen consort. After her first grandson's accession to power in 1935, she became known as Somdetch Phra Phan Vassa Ayika Chao. All her children died before her and she lived to see her grandsons Ananda Mahidol and Bhumibol Adulyadej take the throne.

Chulalongkorn was the fifth monarch of Siam under the House of Chakri, titled Rama V from 1 October 1868 to his death in 23 October 1910.