Isabella did not leave Portugal for another eight weeks. Her father had a fleet and trousseau prepared and on 19 October 1429, with a flotilla of about 20 ships, Isabella—accompanied by almost 2000 Portuguese—left Portugal forever. After an eleven-week journey when the fleet was beset by storms, causing the loss of several ships and much of her bridal trousseau, the convoy reached Sluys on 25 December 1429. The Duchess disembarked the following day where she and Philip celebrated their formal religious marriage two weeks later, on 7 January 1430.