High Quality Content by WIKIPEDIA articles! Arellano University (Pamantasang Arellano in Filipino and commonly abbreviated as A.U.) is a private, nonsectarian university located in Manila, Philippines, established in 1938 by Florentino Cayco, Sr. as the Arellano Law College which was later known as Arellano Colleges. The university was named after Cayetano Arellano, the first Chief Justice of the Supreme Court of the Philippines and the campus of the university was named after Juan Marquez-Sumulong, the head of operations of the opposition during the Philippine Commonwealth.