Pallas was married three times. In 1767 in the 26 years he has entered into a civil marriage with his wife. The German generals, who had a daughter, departed from her husband and was accompanied by Pallas in his expedition of European Russia and Urals. After 16 years of married spouses and their joint daughter Albertina at that time was 9 years old. Three days after the wedding Pallas spouse has died.

   Pallas` the second wife Mary Elizabeth Glan, who bore him three children, died in infancy. Her fate is unknown.

   Third marriage to Caroline (Catharina Ivanovne Polman), which was much younger Pallas, has not had his children accompanied him with her daughter from first marriage Albertina in southern travels 1793-1794 years and settled with him in the Crimea, was also disappointing: the young Pallas's wife had a lot of grief and did not want to return with him to Berlin in 1810. Together with Pallas in Germany, left his daughter, Albertina, widowed by that time, and her son Vladimir. At home was yet alive older brother Pallas August.