Complex sentence: His power and Kuban Cossack property was given to a prime minister Ivanis, from whom St. Andrew's College, Manitoba inherited Bukretov's mace which might earlier be owned by Ivan Sirko.
Split into simpler sentences: His power and Kuban Cossack property was given to a prime minister Ivanis. St. Adrew's college, Manitoba inherited Bukretov's mace which could earlier be owned by Ivan Sirko.