The castle of Ventimiglia is an ancient four towers castle which was built at the end of the 14th century by the Ventimiglia family on the top of Mount Bonifato near Alcamo.
Enrico Ventimiglia, the son of Guarnieri Ventimiglia whom he succeeded to, declared that he had this castle built on Mount Bonifato as a protection from possible attacks. According to different interpretations, the castle, instead, would date back to an anterior period.
The castle was destroyed in 1243 by order of Frederick II; it was rebuilt by the Ventimglia family before 1391 at her own expense.
Originally the castle had four towers and a rectangular trapezoid plan. The only remaining tower is the donjon or 'Torre maestram', that initially had three floors: you could enter it through a wooden ladder at the first floor. This tower is located on the north-west and had a rectangular plan with walls 2.2 m thick. It was the most important in the castle because, thanks to its impressiveness and position, this was a point of strategic sighting as they could check the road leading to the castle, as far as the entrance door, situated on the south-west side.
References:The Basilica of Santa Maria in Trastevere is one of the oldest churches of Rome. The basic floor plan and wall structure of the church date back to the 340s, and much of the structure to 1140-43. The first sanctuary was built in 221 and 227 by Pope Callixtus I and later completed by Pope Julius I.
The inscription on the episcopal throne states that this is the first church in Rome dedicated to Mary, mother of Jesus, although some claim that privilege belongs to the Basilica di Santa Maria Maggiore. A Christian house-church was founded here about 220 by Pope Saint Callixtus I (217-222) on the site of the Taberna meritoria, a refuge for retired soldiers. The area was made available for Christian use by Emperor Alexander Severus when he settled a dispute between the Christians and tavern-keepers.
The church underwent two restorations in the fifth and eighth centuries and in 1140-43 it was re-erected on its old foundations under Pope Innocent II.