I must inform you that there are no widely recognized historical records available regarding an artist named Pietro Marescalco Lo Spada. This could be due to a variety of reasons: the artist may not have gained significant recognition, the name may be spelled incorrectly, or the artist might be a fictional or lesser-known figure whose details have not been well-documented or have been lost over time.
The name 'Lo Spada' could imply 'the sword' in Italian, suggesting a nickname or a moniker that an artist could have adopted, but without further context or accurate details, it is difficult to provide a biography.
If Pietro Marescalco Lo Spada is a historical artist, their work and life may not have been the subject of extensive research or may remain obscure in the annals of art history. Art history is vast and includes countless lesser-known or locally renowned artists who may not have made it into widely published texts or academic studies.
If you have any additional information about this artist or believe there might be an alternative spelling or name they are known by, please provide it, and I will do my best to assist you.