Henrik Klasson Horn

[3] In 1539, he was appointed as a chamberlain alongside Per Brahe and Ture Pedersson (Bielke) [sv] in the newly established royal chamber (Kammarkollegiet).

Later, he was sent to Finland to oversee tax reforms, ensuring royal revenues were increased by implementing land registers (jordeböcker), depriving many impoverished nobles of their privileges.

After the death of Erik Fleming in 1548, he became one of King Gustav Vasa’s most trusted men in Finland, handling both military and civil matters.

Although the fortress withstood the attacks and he initially faced the King Gustav's displeasure, he was soon entrusted with leading the ceasefire negotiations with the Russians in October 1555.

[3] Henrik was knighted by King Erik XIV during his coronation in 1561, after which he was appointed commander-in-chief of the Swedish forces on the Livonian front.

[3] He then served under King Erik XIV, and was made a colonel during the Livonian War in October 1563 and Governor of Estonia and highest commander of the Swedish Infantry in the Baltic Dominions of Sweden.

She was a daughter of Arvid Stålarm the Elder [sv] (died 1529), justiciar of Karelia and castellan of Häme Castle, and his wife Christina Knutsdotter (Kurck).