Your mare has some really great horses in her pedigree. Her sire is a whos' who of great Polish breeding. Including Bandola the full sister to *Bask
You can read some information about her sire here-
An excerpt from Dick Reed on that thread- "*BATAAN was foaled January 15, 1976 in Sweden. He was bred by Countess Penelope Lewenhaupt from imported Polish horses. He was brought to the United States as a yearling by Nodoroma Arabians. Ten years later he was sold to Paulo Gucci. He survived the misery of the fall of Gucci's Millfield Farms and was purchased by Bill Kraft. He lived the last years of his life with Bill Kraft and Linda Watkins in Tioga, Texas where he was much loved and well cared for.
*BATAAN was the son of BANAT (El Azrak X Bandola by Witraz) and from the KRZYZYK d.b. 1869 sire line, imported to Jarczowce in 1876.
His dam CANTATA (Litaur X Canaria by Trypolis) was from the MILORDKA dam line. CANTATA was CANARIA's last foal.
CANARIA born in 1942 was one of the prized broodmares that helped reestablish Polish Arabian horses after WW II. In addition to CANTATA, she produced GWARA (by Wielki Szlem) the dam of GWARNY, she produced CELEBES (by Witraz), she produced CALIOPE (by Witraz) imported to the US and seen extensively in US pedigrees.
*BATAAN was the sire of 249 foals. He was successful as both the sire of show horses and performance horses. One of his most highly regarded progeny is the stallion NF PROOF (out of *Szalka by Eleuzis) who won over $191,000 in four years of racing and is now the sought after sire of race horses."
Your mares dam is a classic Azraff/Ferzon cross which was the very cross that Gainey Arabians used in their program that produced so many stellar horses.
Your mare was shown a little bit in the early 90s with the following results-
DANIEL BOONE ALL ARABIAN (1697) Region: 14 02-MAY-92 to 02-MAY-92
Arabian Mare Breeding 3 5 0
KY COMBINED CLASSIC 1 (1094) Region: 14 31-AUG-91 to 31-AUG-91
Arabian Mare Breeding 1 9 2
AHAO SUMMER CLASSIC (1229) Region: 14 24-AUG-91 to 25-AUG-91
Arabian Mare Breeding 4 8 0
BLUEGRASS SPRING FESTIVAL (1097) Region: 14 08-MAY-91 to 09-MAY-91
Arabian Mare Breeding 2 12 1
DANIEL BOONE ALL ARABIAN (1288) Region: 14 04-MAY-91 to 04-MAY-91
Arabian Mare Breeding 1 3 0
Last but not least your mare is the dam of a Legion of Supreme Merit winner- Trumpet+/ born in 1997 sired by Latest Triumph.
Looks like you got a great gal! I would strongly discourage starting her endurance career at age 24 though. Even if she was young, I do not even know how there would be time to get her in proper condition for a ride when she is going to foal next month and will be tied up with motherly duties for the next several months.