Complex sentence: When peace was signed and the Portuguese Constitution of 1838 established, Mouzinho swore to it on August 1839, being, a few days later, named again general inspector of public construction in the Central Division.
Split into simpler sentences: When peace was signed and the Portuguese Constitution of 1838 established, Mouzinho swore to uphold it in August 1839. A few days later, he was again named general inspector of public works in the Central Division.