It is said of who was raised in a hospice for orphaned babies, where they were usually abandoned by their parents. As a curiosity, when these children did not have a surname they were baptized with that of 'Expósito', so today many people with an ancestor educated in an orphanage still maintain that surname, which would not be Spanish but Latin, since expositus means "exposed", in this case to the elements, to abandonment; formed by ex ( "out" ) positus ( "post , placed" ) . It comes from the Roman custom of exposing the newborn on the ground and if the father lifts it up it is because he accepts it, and if not, anyone can lift it up and take it away. See inclusa .
