Roma Abbey was built in 1164 by Cistercian monks. The monks established a religious and agricultural centre for the entire Baltic Sea region. After the Reformation in the early 16th century, the monastery was abandoned. It was then under the Danish Crown. The monastery building was partly demolished and the church was used as a stable. In 1645, through the peace treaty in Brömsebro, Gotland became Swedish again.
In 1733, County Governor Johan Dietrich Grönhagen, build a new stately residence, using material from the old monastery in the construction. No major changes have been made since then. It was used as the residence for the County Governor until 1822. Today impressive ruins are well known for the Shakesperian plays that are performed here every summer.References:
The Temple of Portunus or Temple of Fortuna Virilis ('manly fortune') is one of the best preserved of all Roman temples. Its dedication remains unclear, as ancient sources mention several temples in this area of Rome, without saying enough to make it clear which this is.
The temple was originally built in the third or fourth century BC but was rebuilt between 120-80 BC, the rectangular building consists of a tetrastyle portico and cella, raised on a high podium reached by a flight of steps, which it retains.
The temple owes its state of preservation to its being converted for use as a church in 872 and rededicated to Santa Maria Egyziaca (Saint Mary of Egypt). Its Ionic order has been much admired, drawn and engraved and copied since the 16th century. The original coating of stucco over its tufa and travertine construction has been lost.