How did Albrecht von Wallenstein gain the support of the Habsburgs and the Jesuits?

Albrecht von Wallenstein secured the favor of the Habsburgs and the Jesuits primarily through his conversion to Catholicism in 1606. This religious alignment helped him ingratiate himself with both groups early in his career.1

His relationship with these powers was further solidified through strategic actions:

• Jesuit Influence: His Jesuit confessor played a pivotal role in his personal life by arranging his 1609 marriage to Lucretia Nekšova, a wealthy Czech widow whose immense estates provided Wallenstein with the financial foundation to live lavishly and fund his future military endeavors.1
• Habsburg Loyalty: Wallenstein demonstrated his commitment to the Habsburgs by serving in military campaigns, such as the 1604 conflict against the Hungarians and by providing a mercenary force at his own expense to support the future emperor Ferdinand II during the war against Venice in 1617. During the Bohemian rebellion, he remained steadfastly loyal to Ferdinand, eventually profiting from the emperor's victory through the acquisition of confiscated noble estates.1