Complex sentence: They encountered several Pueblos in the Galisteo Basin (near present-day Santa Fe) and, according to Castaño, formally took possession of them by erecting crosses and reading the "requerimiento" to the inhabitants.
Split into simpler sentences: They encountered several Pueblo communities in the Galisteo Basin (near present-day Santa Fe). According to Castaño, they formally took possession of these pueblos by erecting crosses and reading the "requerimiento" to the inhabitants.