On April 22, 1876, the flag of the April Uprising was consecrated in Panagyurishte. It was made by Raina Knyaginya.
On the day the uprising was declared, she waved it alongside Benkovski.
Raina Popgeorgieva Futekova-Dipcheva, known as Raina Knyaginya, was a Bulgarian teacher.
After the April Uprising, she was captured by the Turks and subjected to severe suffering. After the intervention of European diplomats, Raina was released and sent to study in Moscow. There she studied medicine for three years and became a midwife.
She was the first certified midwife in Bulgaria. He wrote his "Autobiography", which was first published in Russian. It was only translated into Bulgarian in 1934, making it the first book on the April Uprising.