Pirotta is a well known surname in Malta. Camilleri (second most popular surname in Malta) is G-L14 in Malta dna project on ftdna (It might have multiple origins but unless many are tested we would never know). Surname Said is E-M2. Re Said origin It was widely claimed that 'Nicolò Sayd', a grandson of Cem (1459–1496, the renegade son of Turkish Sultan Mehmet II) settled in Malta and became the ancestor of all Maltese bearing the surname
Said. is now regarded as a fantacy, inspired by the writings of historical novelists Maurice Caron and
John Freely, however the dna testing seems to prove the original claims. Surname Sultana (which is popular on the Island of Gozo) has a similar story derived from a Turk nobility who arrived as a slave with the Knights of St. John from Rhodes who was later given freedom and settled on the Island of Gozo in the village of Xara (where its still common there till today). No one with the surname seem to have tested yet.
It is good to know that when the Knights of St. John moved to Malta from Rhodes they have brought with them over a thousand Rhodians and probably a few ''Slaves'' presuming Turks, North Africans and sub-Saharan. It is also known that some have converted and married locals. I am sure this event is documented somewhere as the order kept a good record to their story.