Different March Prince album releases:

1986 - March 4 - Mazarati's Mazarati
1986 - March 31 - Parade
1987 - March 30 - Sign "O" The Times
1988 - March 4 - Dale Bozzio's Riot In English
1988 - March 8 - Bright Lights, Big City OST
1989 - March 21 - Madonna's Like A Prayer
1992 - March 17 - El DeBarge's In The Storm
1992 - March 31 - Celine Dion's Celine Dion
1993 - March 1 - Candy Dulfer's Sax-A-Go-Go
1993 - March 9 - Monie Love's In A Word Or 2
1995 - March 6 - European release of 94 East's Symbolic Beginning, The Undertaker video and The Sacrifice Of Victor video
1995 - March 27 - NPG's Exodus
1996 - March 19 - Girl 6 OST

Mostly just odds and ends, except for the supreme Parade / SOTT (and Exodus). It's been a while since any P-related albums have been released in March, though - 7 years. It's a big touring month, though - ONA last year, Gold in 1995, and several other more standard tours in other years...