By 1677 Marie Jeanne Baptiste was looking to organise a marriage for her son who would reach his majority in May 1680. Popular candidates were the Archduchess Maria Antonia, a cousin in Portugal, Maria Sofia of the Palatinate-Neuburg, or the French born Anne Marie d'Orléans. Marie Jeanne Baptiste first looked to her sister in Lisbon whose only daughter the Infanta Isabel Luísa was the heiress to her father's dominions. Portuguese law stated that an heiress to the throne must remain in the country and marry a kinsman. Marie Jeanne Baptiste opened negotiations with Portugal in order to get the Infanta to marry her son. This prestigious union would have left Marie Jeanne Baptiste permanently in control of Savoy, with Victor Amadeus II living in Portugal. Plans were made for Victor Amadeus' arrival in Lisbon, and a political party was established opposing the union. Openly disliking the union and approaching his majority, Victor Amadeus II decided to postpone the marriage for two years.