In 1867, Alexandra's eldest daughter, Olga, married King George I of Greece.
She was only sixteen, and Konstantin was initially reluctant for her to marry so young.
In July 1868, Olga's first child was born and was named Konstantin after his grandfather.
The beginning of their daughter's family coincided with the start of the breakdown of Alexandra and Konstantin's marriage.

Although he was only forty, Konstantin's struggles and travails of the previous decade— naval and judiciary reforms, the freeing of the serfs—had prematurely aged him.
As his brother Tsar Alexander II turned away from the reform that had marked his first decade on the throne, Konstantin's influence began to wane and he began to focus more on his personal life.
After twenty years of marriage he had drifted away from his wife.
Konstantin's heavy workload, and the couple's divergent political views and interests had over the years slowly torn away at their relationship.
Alexandra was as conservative as her husband was liberal, and she had learnt to concern herself with her own society and mysticism.
Soon, Konstantin turned elsewhere for sexual intimacy.

At the end of the 1860s, Konstantin embarked on an affair and conceived an illegitimate daughter, Marie Condousso.
In the 1880s, Marie was sent to Greece, later serving as lady in waiting to her half sister, Queen Olga.
Marie eventually married a Greek banker.

Soon after the birth of Marie, Konstantin began a new liaison.
Around 1868, Konstantin began to pursue Anna Vasilyevna Kuznetsova, a young dancer from the St Petersburg Conservatoire.
She was the illegitimate daughter of ballerina Tatyana Markyanovna Kuznetsova and actor Vasily Andreyevich Karatygin.
Anna was twenty years younger than Konstantin and in 1873 she gave birth to their first child.
Four more would follow.

Konstantin bought his mistress a large, comfortable dacha on his estate at Pavlovsk; thereby lodging his second family in close proximity to Alexandra, whom he now referred to as his "government–issue wife".
By this act Konstantin gave ammunition to his political enemies, with Russian society reacting to the scandal by siding with his suffering wife, Alexandra, who tried to bear his infidelity with dignity.

In 1874, fresh scandal erupted when it was discovered that Alexandra and Konstantin's eldest son, Grand Duke Nikolay Konstantinovich, who had lived a dissipated life and had revolutionary ideas, had stolen three valuable diamonds from an icon in Alexandra's private bedroom, aided by his mistress, an American courtesan.
Alexandra's twenty-four-year-old son was found guilty, declared insane, and banished for life to Central Asia.
Alexandra suffered another bitter blow when in 1879, her youngest son, Vyacheslav, died unexpectedly from a brain haemorrhage.
In 1867, Alexandra's eldest daughter, Olga, married King George I of Greece. She was only sixteen, and Konstantin was initially reluctant for her to marry so young. In July 1868, Olga's first child was born and was named Konstantin after his grandfather. The beginning of their daughter's family coincided with the start of the breakdown of Alexandra and Konstantin's marriage.
Although he was only forty, Konstantin's struggles and travails of the previous decade— naval and judiciary reforms, the freeing of the serfs—had prematurely aged him. As his brother Tsar Alexander II turned away from the reform that had marked his first decade on the throne, Konstantin's influence began to wane and he began to focus more on his personal life. After twenty years of marriage he had drifted away from his wife. Konstantin's heavy workload, and the couple's divergent political views and interests had over the years slowly torn away at their relationship. Alexandra was as conservative as her husband was liberal, and she had learnt to concern herself with her own society and mysticism. Soon, Konstantin turned elsewhere for sexual intimacy.
At the end of the 1860s, Konstantin embarked on an affair and conceived an illegitimate daughter, Marie Condousso. In the 1880s, Marie was sent to Greece, later serving as lady in waiting to her half sister, Queen Olga. Marie eventually married a Greek banker.
Soon after the birth of Marie, Konstantin began a new liaison. Around 1868, Konstantin began to pursue Anna Vasilyevna Kuznetsova, a young dancer from the St Petersburg Conservatoire. She was the illegitimate daughter of ballerina Tatyana Markyanovna Kuznetsova and actor Vasily Andreyevich Karatygin. Anna was twenty years younger than Konstantin and in 1873 she gave birth to their first child. Four more would follow.
Konstantin bought his mistress a large, comfortable dacha on his estate at Pavlovsk; thereby lodging his second family in close proximity to Alexandra, whom he now referred to as his "government–issue wife". By this act Konstantin gave ammunition to his political enemies, with Russian society reacting to the scandal by siding with his suffering wife, Alexandra, who tried to bear his infidelity with dignity.
In 1874, fresh scandal erupted when it was discovered that Alexandra and Konstantin's eldest son, Grand Duke Nikolay Konstantinovich, who had lived a dissipated life and had revolutionary ideas, had stolen three valuable diamonds from an icon in Alexandra's private bedroom, aided by his mistress, an American courtesan. Alexandra's twenty-four-year-old son was found guilty, declared insane, and banished for life to Central Asia. Alexandra suffered another bitter blow when in 1879, her youngest son, Vyacheslav, died unexpectedly from a brain haemorrhage.
Princess Alexandra of Saxe-Altenburg