Alonso de Arellano was a 16th century Spanish

Spain

Spain , officially the Kingdom of Spain languages]] under the European Charter for Regional or Minority Languages. In each of these, Spain's official name is as follows:;;;;;;), is a country and member state of the European Union located in southwestern Europe on the Iberian Peninsula...

 explorer who commanded one ship out of five fleets that re-discovered the Philippines

Philippines

The Philippines , officially known as the Republic of the Philippines , is a country in Southeast Asia in the western Pacific Ocean. To its north across the Luzon Strait lies Taiwan. West across the South China Sea sits Vietnam...

 after the Magellan

Ferdinand Magellan

Ferdinand Magellan was a Portuguese explorer. He was born in Sabrosa, in northern Portugal, and served King Charles I of Spain in search of a westward route to the "Spice Islands" ....

 and López de Villalobos

Ruy López de Villalobos

Ruy López de Villalobos was a Spanish explorer who sailed the Pacific from Mexico to establish a permanent foothold for Spain in the East Indies, which was near the Line of Demarcation between Spain and Portugal according to the Treaty of Saragossa in 1529...

 expedition. Spanish and Philippine historians stated that Arellano actually discovered the Philippines first before Miguel López de Legazpi

Miguel López de Legazpi

Miguel López de Legazpi , also known as El Adelantado and El Viejo , was a Spanish conquistador who established one of the first European settlements in the East Indies and the Pacific Islands in 1565. He is the first Governor-General in the Philippines...

, splitting off from the rest of the fleet in the galleon patache San Lucas, piloted by Lope Martín, after leaving the port of Barra de Navidad

Barra de Navidad

Barra de Navidad is a small town located on the western coast-line of the Mexican state of Jalisco.The town of Barra de Navidad with a population of 7000+ is a small farming and fishing community located on the east end of the Bahía de Navidad, 60 km north of Manzanillo...

 in Mexico

Mexico

The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...

. Arellano discovered a number of islands in January 1565 and sailed back to Acapulco

Acapulco

Acapulco is a city, municipality and major sea port in the state of Guerrero on the Pacific coast of Mexico, southwest from Mexico City. Acapulco is located on a deep, semi-circular bay and has been a port since the early colonial period of Mexico’s history...

, becoming the first navigator to established the "Urdaneta's Route" in the Pacific Ocean. Andrés de Urdaneta

Andrés de Urdaneta

Friar Andrés de Urdaneta, O.S.A., was a circumnavigator, explorer and Augustinian friar. As a navigator he achieved in 1536 the "second" world circumnavigation after first one led by Ferdinand Magellan and Juan Sebastián Elcano in 1522...

was part of the fleet of Arellano, who had separated from the group and discovered the same path afterwards. Urdaneta kept better documents and maps of the voyage and so the credit was given to him by historians.