The history of the Haikko manor dates back to 1362 when a Dominican monastery owned the site. Jöns Olafsson Stenbock bought the manor and Haikko was a residence of Stenbock family for next 400 years. In 1871 it was bought by general Sebastian von Etter. Several members of the Russian Imperial family visited Haikko because von Etter was a close friend to czar Nicholas II. During the revolution in 1917 Grand Duke Kiril´s eldest son Wladimir was born and christened at Haikko. He was the nearest aspirant to the imperial crown of Russia and he became later the head of the Romanov family.
Current main building was built in 1913. The Vuoristo family purchased the manor in 1965. Today Haikko provides conference center, spa and hotel facilities.
Sirmione castle was built near the end of the 12th century as part of a defensive network surrounding Verona. The castle was maintained and extended first as part of the Veronese protection against their rivals in Milan and later under the control of the Venetian inland empire. The massive fortress is totally surrounded by water and has an inner porch which houses a Roman and Medieval lapidary. From the drawbridge, a staircase leads to the walkways above the walls, providing a marvellous view of the harbour that once sheltered the Scaliger fleet. The doors were fitted with a variety of locking systems, including a drawbridge for horses, carriages and pedestrians, a metal grate and, more recently, double hinged doors. Venice conquered Sirmione in 1405, immediately adopting provisions to render the fortress even more secure, fortifying its outer walls and widening the harbour.
Thanks to its strategical geographical location as a border outpost, Sirmione became a crucial defence and control garrison for the ruling nobles, retaining this function until the 16th century, when its role was taken up by Peschiera del Garda.