 Complete the following phrase:  New conflict emerged in 1453 upon the death of Petar Talovac, who had governed Croatia proper as ban on behalf of the Hungarian king. Both Thomas and his recently widowed father-in-law wished to gain control of Talovacs allodial land by offering marriage to his widow, Hedwig Garai; Kosača proposed himself, while Thomas suggested his son Stephen. Kosača invited Turks to Bosnia in autumn, but neither prevailed as Venice moved in to protect Talovacs heirs. They then made peace, realizing that the Ottomans, who had just stunned Europe by 