Lords through different Houses:1st Lord in the 4th House

1st Lord in the 4th house
The 1st house is your ascendant and it is also known as Lagna. This house represents your identity, appearance, health, body, attitude, temperament, vitality, and your conclusions about the world. This house is all about your personality
The 4th house is the house of home, family, ancestral property, comfort, your ancestors early childhood, emotional strength, homeland, throne and crown.
You need to combine the features of both the houses, planets and signs when you see the 1st lord in 4th house. Astrological predictions depend all about intuitions based on astrological calculations on the planetary features and avesthas.
When your 1st lord is in the 4th houses your entire life is focused on the matters of the 4th house. You may have more activities at home than in public life. You may have to give more energy into the family matters. This always depends upon the planet which rules your ascendant.
Aries:Your 1st lord is Mars. The fourth house will be occupied by Cancer. The 4th house rules mother, home, family and ancestral property, your ancestors early childhood, emotional strength, homeland, throne and crown.  Mars is the planet of wars. This indicates that you may have to put a lot of effort in bringing harmony in the family. Cancer is the debilitation sign of Mars. Fourth house deals with the soft and delicate things like family relations, mother and emotional strength. Mars is the soldier of the zodiac and he wants to fight for the full rights of the house he sits in. Especially in Cancer which is water sign. Mars is losing focus here and forced to be homely and disciplined. He is asked to be obedient and be respectful of others. This shows a turbulent childhood. A person with this placement may not feel that happy in his family environment. There can be power struggles with his mom or relatives. You may experience more burdens from family matters. Things may get better towards the second half of your life.
Taurus: Your 1st lord is Venus. It will occupy the sign of Leo. The 4th house rules mother, home, family and ancestral property, your ancestors early childhood, emotional strength, homeland, throne and crown. Venus in astrology signifies young woman, love, luxury, comfort, spouse, marriage and agreements. This indicates good and encouraging situation at home. The native may work in some areas related to the decoration or beautification of home. The spouse also may be connected to the real estate industry or interior decoration. This position indicates wealth and happiness.
Gemini: Your 1st lord is Mercury. Your 4th house will be ruled by Virgo. Mercury is in its own house and is in exaltation. Mercury signifies intellect, speech, relatives, communication, media, electronics, logic, education, technology, and siblings. This indicates that you may have a very communicative environment at home. Your mother can be very talkative. You may use your communication skills for work. You may have some interest in the real estate field. You may even work from home. Your parents also may be in some field related to real estate.
Cancer: Your 1st lord is Moon. The 4th house will be ruled by Libra. Moon means mother, mind, emotion, intuitions, feelings, imagination, nourishment, the way we think, comfort, fertility and public life. It shows Moon is in its own house. This shows a warm relationship with your mother. You may work in a hospitality related domain. You yourself will be a very sensitive and emotional person. You will get good comforts from your mother. That will be a great support for your entire life.
Leo:  Your 1st lord is Sun. It will be in the sign of Scorpio. Sun signifies father, government, authority, rulers, discipline and inner self. This indicates a government servant. According to the degrees and aspects, your role in government can be from the highest authority to the lower authority. You may even become a secret agent for the government. You may see your mother taking more responsibilities than your father. This may make you a shadow of your mother since Sun is directionless in the 4th house.
Virgo: Your 1st lord is Mercury. It will be in the sign of Sagittarius. This is a clear indication of a very practical person. This person will be very logical. His mother may also be in teaching or in a profession related to analytics. His mother may be very strict and he also may be very strict. This person will like to go for higher studies.
Libra: Your 1st lord is Venus. It will be in the sign of Capricorn. The 4th house rules mother, home, family and ancestral property, your ancestors, early childhood, emotional strength, homeland, throne and crown. Venus in astrology signifies young woman, love, luxury, comfort, spouse, marriage and agreements. This indicates good and encouraging situation at home. The native may work in some areas related to the decoration or beautification of home. The spouse also may be connected to the real estate industry or interior decoration. This position indicates wealth and happiness.
Scorpio: Your 1st lord is Mars. It will be in the sign of Aquarius. The 4th house rules mother, home, family and ancestral property, your ancestors early childhood, emotional strength, homeland, throne and crown. Mars signifies passion, electricity, fire, heat, army, heightened emotions, arguments and hard work. Mars in the sign of Aquarius means you may find it difficult to adjust within the family. This may create power struggles with you and your family members. You may have to slow down your energy to keep peace at home.
Sagittarius: Your 1st lord is Jupiter. It will be in the sign of Pisces. Your mother may be very spiritual. Jupiter is the spiritual teacher in astrology. In the Vedas Jupiter is the guru of Devas. This means your mother gave you a lot of spiritual teaching. You are highly influenced by her. You may have a great childhood and great relation with mother.
Capricorn: Your 1st lord is Saturn. It will be in the house of Aries.  Saturn is in the sign of Mars. Saturn and Mars are enemies.  Saturn is debilitated in Aries. This indicates turbulence in the family. Your mother and you may have power struggles. Aries is the sign of spontaneity where as Saturn is slow pace and hindrances. Saturn may not have enough strength to face the issues at home. So you may get irritated or display irritated nature at home.
Aquarius: Your 1st lord is Saturn. It will be in the sign of Taurus. This sign is ruled by Venus. Venus and Saturn are friends in astrology. Venus represents love, young women, luxury, comfort, spouse, marriage and agreements. Saturn represents health, obstructions, disease, enmity, sorrow, longevity, lessons and old people. This may mean that even though Saturn is in its friend’s house, the situations are not that fine there. You may have to put great effort to make things happen at home
Pisces: Jupiter is your 1st lord. It will be in the sign of Gemini. Gemini is a dual sign and it is represented by the twins. It is ruled by Mercury. Mercury signifies intellect, speech, relatives, communication, media, electronics, technology, and siblings. This indicates a very well educated mother. Your parents may be very educated. You are lucky it seems.
This is the general description. Accuracy will change according to the aspects, conjunctions, signs and the star placement of the planets.