Gniewosz of Dalewice (; died after 1410) of Clan Kościesza was a Polish knight and a courtier of King Władysław Jagiełło and Queen Jadwiga of Poland. A Chamberlain of Kraków, along with Władysław Opolczyk, he was the main partisan of William of Austria (originally betrothed to Jadwiga), and opposed Jadwiga's marriage to Jagiełło. After it eventually happened in 1378, he tried to prevent it from being consummated.
Gniewosz of Dalewice (; died after 1410) of Clan Kościesza was a Polish knight and a courtier of King Władysław Jagiełło and Queen Jadwiga of Poland. A Chamberlain of Kraków, along with Władysław Opolczyk, he was the main partisan of William of Austria (originally betrothed to Jadwiga), and opposed Jadwiga's marriage to Jagiełło. After it eventually happened in 1378, he tried to prevent it from being consummated.