sentences:  On April 24, 1444 Vladislaus sent a letter to Murad, stating that his ambassador, Stojka Gisdanić, was travelling to Edirne with full powers to negotiate on his behalf.He asked that once an agreement was reached, Murad send his own ambassadors with the treaty and his sworn oath to Hungary, at which point Vladislaus could also swear peace.On the same day Vladislaus held a diet at Buda, where he swore before Cardinal Julian Cesarini to lead a new expedition against the Ottomans in the summer.