Luciano Laurana (Lutiano Dellaurana, Croatian: Lucijan Vranjanin)[1] (c. 1420 – 1479) was a Dalmatian Italian architect and engineer from the historic Vrana settlement near the town of Zadar in Dalmatia,[2] (today in Croatia, then part of the Republic of Venice)[2] After education by his father Martin in Vrana settlement, he worked mostly in Italy during the late 15th century. He was principal designer of the Palazzo Ducale of Urbino and one of the main figures in 15th-century Italian architecture.[3] He considerably influenced the development of Renaissance architecture. His projects were accompanied with notes in the Croatian glagolitic script, as witnessed by the famous Bernardo Baldi.[4] He was a relative of the sculptor Francesco Laurana.