One more (trophy?) Ottoman sabre depiction in European art. From the L'Ospedale di Santo Spirito - Corsia Sistina. The fresco was painted around 1475-78, and probably depicts Nicholas of Ilok, "King of Bosnia and Wallachia?", who came to Rome as a pilgrim for the Jubilee, in the spring of 1475.
You can read about it in 'MEN IN EXOTIC DRESS', SIXTUS IV AND CRUSADE: A FRESCO OF CORSIA SISTINA AND ITS MEANING and in Dracula before the POPE in 1475? Forgotten sources

Unfortunately, the pictures and the depiction itself aren't very detailed. So of limited use. I'm posting this here just for completeness.