No idea if this is what the post calls for, but here's my suggested life of Grace Plantagenet:
Born in the early 1470's, Grace Plantagenet was the product of a liaison between the King of England and a Scottish maid, who traveled with the King during his exile in Scotland and had become his mistress. Their relationship was brief, however, and when he took back his throne in 1471, he fully intended to leave the young woman entirely, but their was one problem: she was pregnant. Noble enough to know what to do, he brought her to London, paid for her to stay with a well to do servant family, and by 1475 the young Miss Grace was recognized by her father, her mother was sent back to her Scottish family, and she was sent to the country, for the time being.
Often forgotten by her father, Grace Plantagenet was raised with her royal bastard status as a known fact, and in 1483, just two weeks before his death, the King had her brought back to the court. We can guess from this she was probably of an age to be interrgrated into the court, so her birth was probably around 1471/1472. Regardless of her age, she was placed in the Queen's household, and was there when her father died, in April of 1483.
She was amongst the small group that rallied around the Queen, and when Elizabeth Woodville took to sanctuary, she was kept in her service as a maid. The young girl seems to have kept herself close to Woodville, and it's suggested that during the stay, Grace Plantagenet was in attendance to the Queen when she agreed to let her younger son out of the safety of sanctuary. Regardless, she was amongst the party that would return to the royal court, this time of Richard III, in 1484.
Grace would see herself married in 1485, under her uncle's suggestion, to fellow courtier Harold Cooper. A man of some wealth and little else to recommend him, this was his fourth marriage, and the first to provide children, as a son was conceived sometime late in the year. There's evidence that Cooper was meant to gain a title from King Richard, but that would not come to be, and the Coopers would find themselves once again under a new King. They were accepted into the royal household, and in 1486, Grace Plantagenet was once again acting as a maid to her father's wife, after the birth of a son named Adam Cooper. This would remain the situation until 1487, when Elizabeth Woodville entered Bermondsey Abbey and Grace Plantaganet entered the household of the York sisters, firstly as a maid to Cecily of York, then Anne of York until 1495. We know Grace Plantaganet had a further three children while in this position, and in 1495 was left a wealthy widow with four children.
Grace Plantaganet would attend Elizabeth Woodville's funeral in 1492, possibly as a guest of Cecily of York. We know the two were close enough that, around 1504, she was amongst those who support the York Princess on her third marriage, and attended her funeral in 1507. She also may have remarried herself to Cecily's widower, as she is recorded as having "two children, Isabelle and John Kymbe, in attendance" in 1511, although it's possible those two were Cecily's children, and Grace Plantagenet had simply taken on responsibility for them. Whatever her role, it's likely she died around the 1520's, and we know a "Mrs. Coopr" died in 1527, during the outbreak of sweating sickness. If this was her, it's a sad end to an interesting life, although there is record of a "Widow Coopre" in 1532, so perhaps that was her daughter-in-law who died in 1527, as we know Adam Cooper married to a rich widow of his own in 1514, although her name is lost to time.
Grace Plantaganet is an interesting figure in history, as she is lost to obscurity, but continued to play a part in it. She attended the funerals of Queens and nobles, but never once rose above her place. She was a kind woman, a good woman, and upon her death, whenever it was, Tudor England lost a bright spark of goodness.