as nilád or nilár in Tagalog. From a linguistic perspective it is unlikely for native Tagalog speakers to completely drop the final consonant /d/ in nilad to achieve the present form Maynilà. Historian Ambeth Ocampo also states that in all early documents the place had always been called "Maynilà" (eventually adopted into Spanish as Manila) — and never referred to with the final /d/. Despite the may-nilad etymology being erroneous, it continues to be perpetuated through uncritical repetition in both literature and popular imagination. Maynila as the Kingdom of Luzon Portuguese and Spanish accounts from the early to mid 1500s state that the Maynila polity was the same as the "kingdom" that had been referred to as the "Kingdom of Luzon" (Portuguese: Luçon, locally called "Lusong"), and whose residents had been called "Luções". Magellan expedition member Rodrigo de Aganduru Moriz's account of the events of 1521 specifically describes how the Magellan expedition, then under the command of Sebastian Elcano after the death of Magellan, captured of one of the Luções: Prince Ache, who would later be known as Rajah Matanda, who was then serving as a commander of the Naval forces of Brunei. Aganduru Moriz described the "young prince" as being "the Prince of Luzon - or Manila, which is the same.” corroborated by fellow expedition member Gines de Mafra and the account of expedition scribe Antonio Pigaffetta. This description of Ache as "King of Luzon" was further confirmed by the Visayan allies of Miguel Lopez de Legaspi, who, learning that he wanted to "befriend" the ruler of Luzon, led him to write a letter to Ache, whom he addressed as the "King of Luzon". Kapampangan scholar Ian Christopher Alfonso, however, notes that the demonym Luções was probably expansive enough to include even Kapampangan sailors, such as the sailors from Hagonoy and Macabebe who would later be involved in the 1571 Battle of Bangkusay Channel. The name Luzon, which French linguist Jean-Paul Potet explains was the name given to the Pasig River delta area, is thought to derive from the Tagalog word lusong, which is a large wooden mortar used in dehusking rice. A 2008 PIDS research paper by Eulito Bautista and Evelyn Javier provides an image of a Lusong, and explains that, "Traditional milling was accomplished in the 1900s by pounding the palay with a wooden pestle in a stone or wooden mortar called lusong. The first pounding takes