The 75958 HP Beauxbaton's carriage reminded me of a Castle set I got as a kid, like an updated 6044 King's carriage. I did some slight modifications (Pegasus wings...) and exchanged the
Lego System 6044 - CSAK ÖSSZERAKÁSI ÚTMUTATÓ - Kockafalu
Peeron: King's Carriage (#6044-1)
Zestaw Lego 6044 - Kareta króla lwa + instrukcja | Warszawa | Kup teraz na Allegro Lokalnie
LEGO 6044 King's Carriage 100% Complete w/Manual & Extra Items, no box, VTG 1995 | eBay