The House of Thopia was one of the most powerful Albanian feudal families in the Late Middle Ages. It was initially part of the nobility of the Angevin Kingdom of Albania. The first attestation of the Thopia can be found in an Angevin document from 1274 proclaiming an agreement reached between a number of Albanian nobles and Charles I of Anjou. In the document, a certain Theopia mīles is recorded among the Albanian nobles in pact with the Angevins. The Thopia are next mentioned in 1329 when Tanusio Thopia was mentioned as one of the counts of Albania. In 1338, Tanusio was mentioned as Count of Matia (conte di Matia). According to Anamali & Prifti, Tanusio had a brother, Dominik, who was a high cleric and served as a counsel of Robert of Anjou. According to Karl Hopf, Tanusio's son or brother Andrea, as told by Gjon Muzaka (fl. 1510), had fallen in love with the daughter of Robert of Naples when her ship, en route to the Principality of the Morea to be wed with the bailli, had stopped at Durazzo where they met. Andrea abducted and married her, and they had two sons, Karl and George. King Robert, enraged, under the pretext of reconciliation had the couple invited to Naples where he had them executed. The family converted from Eastern Orthodoxy to Catholicism. By 1340 the Thopia controlled much of the territory between the rivers Mati and Shkumbin rivers. Together with the Muzaka family, they agreed to recognize Angevin suzerainty after rebelling against the Serbs. However except for Andrea Muzaka who defeated the Serbs in a battle in the Peristeri mountains, no action was taken to realize the treaty with the Angevins. Karl Thopia Under Karl Thopia the family reached its zenith. After the death of Emperor Stefan Dušan (1355), Karl managed to capture much of central Albania which was part of the Serbian Empire until then. In 1362 his forces attacked the city of Durrës, then in Angevin hands. Although he couldn't capture the city, he forced them to pay an annual tribute to his family. In 1368 Karl managed to capture the city of Durrës.