Information:  - A was the military dictator of Japan during the period from 1185 to 1868 (with exceptions). In most of this period, the shoguns were the "de facto" rulers of the country; although nominally they were appointed by the Emperor as a ceremonial formality. The Shogun held almost absolute power over territories through military means. Nevertheless, an unusual situation occurred in the Kamakura period (11991333) upon the death of the first shogun, whereby the Hj clan's hereditary titles of "shikken" (1199-1256) and "tokus" (12561333) monopolized the shogunate as dictatorial positions, collectively known as the . The shogun during this 134-year period met the same fate as the Emperor and was reduced to a figurehead until a coup in 1333, when the Shogun was restored to power in the name of the Emperor.  - In politics, a figurehead is a person who holds "de jure" (in name or by law) an important title or office (often supremely powerful), yet "de facto" (in reality) executes little actual power. The metaphor derives from the carved figurehead at the prow of a sailing ship. Commonly cited figureheads include Queen Elizabeth II, who is Queen of sixteen Commonwealth realms and head of the Commonwealth, but has no power over the nations in which she is not head of state and does not exercise power in her own realms on her own initiative. Other figureheads are the Emperor of Japan, the King of Sweden, or presidents in majority of parliamentary republics, such as the President of India, President of Israel, President of Bangladesh, President of Greece, President of Germany, President of Pakistan (starting in 2010), and President of China (without CPC General Secretary and Chairman of CMC posts).  - The is a period of Japanese history that marks the governance by the Kamakura shogunate, officially established in 1192 in Kamakura by the first shogun, Minamoto no Yoritomo. The period is known for the emergence of the samurai, the warrior caste, and for the establishment of feudalism in Japan.  - Minamoto no Yoriie (   , September 11 , 1182 -- August 14 , 1204 ) was the second shogun ( 1202 -- 1203 ) of Japan 's Kamakura shogunate , and the first son of first shogun Yoritomo .  - De facto is a Latin expression that means "in fact, in reality, in actual existence, force, or possession, as a matter of fact" (literally "of fact"). In law, it often means "in practice but not necessarily ordained by law" or "in practice or actuality, but not officially designated or established". It is commonly used in contrast to "" (which means "according to law"; literally "from law"), when referring to matters of law, governance, or technique (such as standards) that are found in the common experience as created or developed without or contrary to a regulation. When discussing a legal situation, "de jure" designates what the law says, while "de facto" designates what happens in practice.    Given the information, choose the subject and object entities that have the relation of 'father'.
A:
minamoto no yoriie , minamoto no yoritomo