Juan de Ayala
Spanish naval officer. / From Wikipedia, the free encyclopedia
Juan Manuel de Ayala y Aranza (28 December 1745 – 30 December 1797) was a Spanish naval officer who played a significant role in the European exploration of California, as he and the crew of his ship the San Carlos were the first Europeans known to have entered the San Francisco Bay, having sailed there from the Port of San Blas, Nayarit, Mexico.
In this Spanish name, the first or paternal surname is Ayala and the second or maternal family name is Aranza.