In brief
The ancient complex remains readable among later buildings and functions.
Useful to know
Diocletian's palace in Split was built in the late third and early fourth centuries. UNESCO describes how ancient structures are present in the later city, along with Romanesque churches and Gothic, Renaissance and Baroque structures. [1]
On a map, look for the early organization, then compare with today's diversity of buildings. Adaptation does not simply mean a preserved empty palace shell. Inherited structures may receive new functions. Therefore, separate the original purpose from the subsequent use when explaining a specific part of the complex.
Sources
For further detail and to check the information: