Only in the begining of the 20th century that Mgarr got its own Parish and fully completed church. Note that the church is one of the largest after Mosta church in the world.

Its history was of a farming community, which some of the Mdina patrican families had owned such as the Vassallo family. Note, that Mgiarro was granted by the King of Sicily to the Inguanez family, and over time had sold it to the Falsone family.

Today the title holder of Signor di Mgiarro is Principe Giuseppe Said.

Over time, land was split up and given to all descendants.