claim: Elizabeth of York was someone's niece.
evidence: Jang Do-yoon -LRB- Hangul  : 장도윤 , born August 31 , 1995 -RRB- is a South Korean actor .. Hangul. Hangul. He made his acting debut in the 2013 drama special Happy !. Rose Day .. He is mainly known for being a possible member of the popular boy group Seventeen .. Seventeen. Seventeen ( band ). His fans are called `` Doflowers '' or '' 도바라기 '' which combines the words `` Doyoon '' and `` Sunflower '' .