Did Thomas Greenhill's parents violate the concept of monogamy?
Thomas Greenhill was a surgeon born to William and Elizabeth Greenhill. William and Elizabeth Greenhill had 39 children. Monogamy is a committed relationship between two people where usually they remain together for life. Thomas Greenhill was the last of his parents 39 children and was born shortly after his father died.
The answer is no.

Can a martyr saint have been excommunicated?
Joan of Arc was excommunicated by the Catholic Church in 1431. Joan of Arc was declared a martyr in 1456 after an investigation ordered by King Charles VII. Joan of Arc was canonized a Saint by the Catholic Church on May 16, 1920.
The answer is yes.

Do Shinto practitioners keep to a kosher diet?
Shinto is a religion originating from Japan. Shinto does not have any dietary restrictions. Seafood including shellfish is a staple of the Japanese diet. Jewish kosher laws prohibit the consumption of shellfish.
The answer is no.

Could a Jujutsu expert hypothetically defeat a Janissary?
Jujutsu is a form of unarmed combat. Janissaries were the elite infantry of the Ottoman Empire. Janissaries wore chain mail and armor and wielded sharp swords.
The answer is no.