Sophia and Constantine's marriage was harmonious during the first years.
However, faithfulness was not the greatest quality of the Diadochos and his wife soon had to deal with his numerous extramarital affairs.
Initially shocked by what she saw as a betrayal, Sophia soon followed the example of her mother-in-law and condoned the behavior of her husband.
From 1912, however, the couple became noticeably separated.
At that time, Constantine began an affair with Countess Paola von Ostheim (née Wanda Paola Lottero), an Italian stage actress who had recently divorced from Prince Hermann of Saxe-Weimar-Eisenach; this relationship lasted until Constantine's death.

When Sophia gave birth to her sixth and last child, a daughter named Katherine on 4 May 1913, a persistent gossip stated that the child was the result of her own affairs.
The rumours, true or false, didn't affect Constantine, who easily recognized his paternity.

In private, the Crown Princely couple communicated in English and it was mainly in this language that they raised their children, who grew up in a loving and warm atmosphere in the middle of a cohort of tutors and British nannies.
Like her mother, Sophia inculcated in her offspring the love for the United Kingdom and for several weeks every year, the family spent time in Great Britain, where she visited the beaches of Seaford and Eastbourne.
However, the summer vacations of the family were spent not only in Friedrichshof with the Empress Dowager, but also in Corfu and Venice, where the Greek royal family went aboard the yacht Amphitrite.
Sophia and Constantine's marriage was harmonious during the first years. However, faithfulness was not the greatest quality of the Diadochos and his wife soon had to deal with his numerous extramarital affairs. Initially shocked by what she saw as a betrayal, Sophia soon followed the example of her mother-in-law and condoned the behavior of her husband. From 1912, however, the couple became noticeably separated. At that time, Constantine began an affair with Countess Paola von Ostheim (née Wanda Paola Lottero), an Italian stage actress who had recently divorced from Prince Hermann of Saxe-Weimar-Eisenach; this relationship lasted until Constantine's death.
When Sophia gave birth to her sixth and last child, a daughter named Katherine on 4 May 1913, a persistent gossip stated that the child was the result of her own affairs. The rumours, true or false, didn't affect Constantine, who easily recognized his paternity.
In private, the Crown Princely couple communicated in English and it was mainly in this language that they raised their children, who grew up in a loving and warm atmosphere in the middle of a cohort of tutors and British nannies. Like her mother, Sophia inculcated in her offspring the love for the United Kingdom and for several weeks every year, the family spent time in Great Britain, where she visited the beaches of Seaford and Eastbourne. However, the summer vacations of the family were spent not only in Friedrichshof with the Empress Dowager, but also in Corfu and Venice, where the Greek royal family went aboard the yacht Amphitrite.
Sophia of Prussia