[3][4] The new Tsaritsa was renowned for her fierce support of her adopted Eastern Orthodox faith.

Ivan Shishman was crowned co-emperor by his father who made his elder son Despot of Vidin in exchange.

From now on, the relationship between the two Bulgarian Empires became cold and remained so despite the threat of the forthcoming Ottoman invasion.

The date of the death of the Tsaritsa is unknown, although some historians assume she died in the late 1380s.

There are five known children born to Tsar Ivan Alexander and Tsaritsa Theodora:[5] Mount Sara Teodora on Oscar II Coast in Graham Land, Antarctica is named after Sarah-Theodora.