Lagergren

A junior branch of the family is descended from one of his younger sons, and holds the title of count, which was granted by Pope Pius X in 1904.

All other cadets, as long as they fulfil the two requirements defined by the 1904 Papal brief, that is 1) being descended from the first bearer of the title, through an uninterrupted succession of ancestors legitimately wed under Catholic rules.

2) and having never left the Catholic religion, are entitled to the mention “noble of the Counts Lagergren” after their surname are therefore entitled to be introduced by mentioning their ancestor's title, immediately followed by their first name and then their surname, to differentiate them from the head of the family as per the rules of Consulta Araldica The titles were legally recognized by Italy 1929–1948, and remain legally recognized by the Holy See.

His wife's inheritance made it possible for him to buy Tyresö Palace in 1892, which he rebuilt inspired by original drawings from the 17th century in a national romantic style.

In 1922, three years after the death of his first wife, he married Mary Moore Ogden (1856–1933), who was also a wealthy American heiress and whose funds made it possible for him to rebuild the castle.