Petra returned to her homeland of Brigid, and inherited the throne from her grandfather. As ruler, she declared independence from Fodlan, and renegotiated Brigid's diplomatic relationships on more equal terms. Next, she introduced industrial practices that were modeled on those of Fodlan, vastly improving her homeland's economy. This rapid development surprised those abroad, until it was discovered that the improvements came thanks to the counsel of Petra's husband, Linhardt, who had left Fodlan to offer Brigid his talent and insight. It is said that the couple maintained a healthy and affectionate relationship, and that they raised many happy children together.