Wanda Mound is a tumulus assumed to be the resting place of the legendary princess Wanda. According to one version of the story, she committed suicide by drowning in the Vistula river to avoid unwanted marriage. The mound is located close to the spot on the river bank where her body was found. Archaeological studies, conducted on site in 1913 and in mid-1960, did not provide any conclusive evidence of the mound's age and purpose.
The mound base, some 50 metres in diameter and its height is 14 metres. Unlike the other three mounds in Kraków, this one is not located on a natural hill.
The first written record of the mound comes from the 13th century. Within a mile of the mound-site in 1225 a monastery was built by the bishop of Kraków, Iwo Odrowąż, called the Mogiła Abbey, which is still active today. In 1860 it became a part of Austro-Hungarian fortifications, pulled down only in 1968-1970. In 1890 a monument designed by Jan Matejko was erected at the top.
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.