The Beverly Hills, 90210 alum, whose actual birthday was three days earlier, partied at Naesbyholm Castle with about 150 guests, according to local newspaper BT.
Those partygoers included some local Danes, who each handed over about $300 to eat, drink and have the photos taken with the reality star, BT reported.
The castle's owners rolled out a red carpet for the soiree, which also featured a gift table and tables laden with cakes.
Spelling and her crew (including kids Liam, 9, Stella, 7, Hattie, 4, and Finn, 3) are currently on a grand tour of Europe — and McDermott, 49, made the trip even more special when he surprised his wife by proposing to her for a third time near the Eiffel Tower in Paris at the end of April.
The family celebrated by visiting the Palace of Versailles, and on May 11, Spelling and her husband — whose marriage was rocked by McDermott's 2013 cheating scandal —marked their 10th anniversary by getting matching tattoos in the City of Light.
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