The family tree of Trenderhoof and Trixie
 
Trenderhoof  
Husband of Coloratura, father of Runic Trend, Spirit Melody and adoptive father of Soul Harmony.
 
Coloratura  
Wife of Trenderhoof, mother to Spirit Melody and adoptive mother of Soul Harmony. Step-mother to Runic Trend.
 
Trixie Lulamoon  
Mother to Mystic Daze and Runic Trend. Married to Zephyr Breeze, aunt to Cloudburst (Not shown) and Skitterdrop (Not shown) Unknown parentage.
 
Zephyr Breeze  
Father of Mystic Daze, Step-father to Runic Trend. Married to Trixie Lulamoon, son to Mr. and Mrs. Shy. Brother to Fluttershy. Uncle to Cloudburst (not shown) and Skitterdrop (not shown)
 
Runic Trend  
Son of Trenderhoof and Trixie. Half-brother of Mystic Daze and Spirit Melody. Step-son of Zephyr Breeze and Coloratura. In a relationship with Elegance (not shown)
 
Mystic Daze  
Daughter of Zephyr Breeze and Trixie Lulamoon, cousin to Skitterdrop (not shown) and Cloudburst (not shown). Niece of Fluttershy (Not shown) and Rainbow Dash (not shown), half-sister to Runic Trend
 
Soul Harmony  
Adoptive daughter or Coloratura and Trenderhoof (originally only to Coloratura). Adoptive sister of Spirit Melody and adoptive half-sister to Runic Trend. Biological parents unknown.
 
Spirit Melody  
Daughter of Trenderhoof and Coloratura. Adoptive sister to Soul Harmony, half-sister to Runic Trend.  
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So here’s Trenderhoof’s and Trixie’s families. They split up and both found new partners and had new children.  
Coloratura adopted Spirit Harmony before she ever met Trenderhoof, she wanted a child and decided to adopt a child in need. She’s had Soul Harmony since she was incredibly young.  
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Spirit Melody, Soul Harmony, Mystic Daze and Runic Trend belong to me  
Canon characters and MLP belong to Hasbro  
Vectors and bases belong to their respective owners.