Lorenzo de Arrau

Lorenzo de Arrau (1735–1781) was a Spanish military engineer who served in Chile during the second half of the 18th century. Biography Arrau was born in Barcelona in 1735. He was sent to the Spanish colony of Chile by King Carlos III to work as a military engineer. De Arrau arrived in Chile in 1763, accompanying Juan Garland and Ambrosio O'Higgins (future Marquis of Osorno and Viceroy of Perú and father of Bernardo O'Higgins, the father of the Chilean independence). He served in Valdivia in 1764, and in Santiago where he established an arsenal for the manufacture of cannons. He married Isabel de Santa María Escobedo y Baeza, and they had six children: Juan (single), Pedro Juan (a down-to-earth rancher and an ancestor of pianist Claudio Arrau), Clara, Juana, Cruz, and Manuela Bárbara (nun).