If you're curious about what happened to Vieste after the Ottoman siege, you're in luck. There is an exceptional historical source written between 1680 and 1687 that allows us to take a glimpse into the Kingdom of Naples during that period, including Vièste. These are the travel accounts of Abbot Giovan Battista Pacichelli. 

Published posthumously in 1703 in a work titled "Il Regno di Napoli," these texts are the result of fifteen years of observations; historians consider them primary sources, and therefore, particularly valuable.

Pacichelli describes the Capitanàta - the name given to the territory comprising Gargano during the Kingdom of Naples - as an unhealthy and challenging area where pastoralism was the main form of livelihood. Vieste stands out to him. He describes it as "nestled in the slopes of Mount Gargàno, from the side of the East."

Apparently, the demographic decline that followed the events of the previous century is still evident. Pacichelli's Vieste is "narrow around and squeezed of inhabitants" due to the effects of repeated "earthquakes" and the "fury of the Muslims."