Wind Cry's Mary. it was Jimi's girlfriend at the time, they had a fight and she was throwing pots/pans at him,, they split for a few days, and he had written WCM by then.
Also from what I've read, I can tell you that Hendrix's Room Full of Mirrors was based on his mothers place,
she had a room full of mirrors. (basement maybe,, memory is fading)
as for SRV - Lenny was a guitar he saw hanging in the store as they walked by and he 'dreamed' of owning it. Lenora (aka Lenny) got all her friends to chip in and buy it and she gave it to him.
he said he felt touched and as she slept he wrote the song Lenny.
to see a really great version of Lenny the song, look up Live at the El Mocambo from Toronto in 1982 (his first visit to TO)
needless to say after countless years on the road.. SRV came home to find his wife cheating on him and subsequently broke up. so much for "Lenny #1".
Lenny never the less is a great song.
https://www.musiciansfriend.com/guitars/fender-custom-shop-stevie-ray-vaughan-lenny-tribute-stratocaster-electric-guitar