Martin de Redin

Fra' Martin de Redin was a Spanish military and political figure, and the 58th Prince and Grand Master of the Order of Malta. He became Grand Prior of the Order of Malta of Navarra in 1641, and Viceroy of Sicily in 1656.
He was elected Grand Master of the Knights Hospitaller in 1657 after the death of Giovanni Paolo Lascaris. During his rule, he commissioned the building of 13 de Redin watch towers around the coast of Malta. These towers created a line of communication around the island to give warning of the approach of corsairs and pirates.
De Redin also created a corps of 4,000 musketeers, and brought in food and supplies from Sicily when Malta suffered a shortage during his reign.
In 1658, the first granaries in Valletta were excavated near Fort St Elmo to serve as storage facilities for grain that was imported from Sicily. Only 39 of the original 70 granaries are still visible, with the remainder having been destroyed to accommodate the road and adjacent building structures. The flask-shaped cavities were cut out of rock and came in different sizes, with a capacity ranging between 50 and 500 tonnes of grain. The smaller ones measured around 4.5 metres in diameter and about 9 metres in depth, featuring narrow cylindrical necks 1 to 2.5 metres in width.
File:Malta - Naxxar - St. Mark's Tower peninsula - St. Mark's Tower 01 ies.jpg|thumb|left|Saint Mark's Tower in Baħar iċ-Ċagħaq was completed in 1658. It was the third of the De Redin towers.