The reconstruction also had a symbolic message that the evil walnut tree of Nero was supplanted by the beneficent oak of the Della Rovere. The papal coats of arms were placed on the façade and the vaults as "symbols of eternal happiness and protection from lightning", as Landucci explained praising the transposition of the two trees. Another important aspect of the Sistine reconstruction was that it made the basilica – the first church for the pilgrims arriving in Rome from the North – a dynastic monument of the Della Rovere family. This was reinforced by relatives of the pope and other personages of his court who bought chapels and built funeral monuments. "Santa Maria del Popolo became a place to unite visually the universal domination of the church with the della Rovere, a totemic symbol that would associate the della Rovere with Rome and allowed them to co-opt its magnificience and glory", claimed Lisa Passaglia Bauman.