Carrer d'Entença (official Catalan name; known in Spanish as Calle Entenza) is a street in Barcelona, situated in the left half of the Eixample district's grid plan. It's named after House of Entença nobleman , who captained a number of expeditions towards the East in the 13th century. The naming was approved on December 19, 1863 and was already plan of Ildefons Cerdà's urban plan, even though under the tentative name of "15th street". In 1925 it was extended, reaching Avinguda Diagonal, beyond which it becomes .