gentleness is incorrectly written and it should be written as "courtesy" being its meaning:
Word derived from the Latin adjective gentilis gentile: family, the House, the nation and this gens, gentis which meant in ancient Rome a group of families who descended or believed to descend from a common ancestor, as some of the founders of the city, and her family gods ( had lares and penates ) habits and awareness of a Manor and special nobility that not everyone had. The name of the gens was second in males because they had a praenomen ( first name ) a nomen ( 41 gens; and a cognomen ( order of birth or any particular characteristic ). Thus, for example, Cicero was called Marcus Tulius Cicero: frame ( perhaps by his father or grandfather ) Tulius ( gens Tulia ) and Cicero ( because he had a wart on his nose resembling a chickpea ( cicero ciceronis ). For us the courtesy is not based on genetics but in our education and behavior. That means courtesy, education, care, kindness, distinction, chivalry, gallantry, chivalry... Chivalry may have certain hereditary connotation.