hello all , i have been growing the royal kush for 9 runs now and am very familiar with it. i had the same problems a year ago when i tried to find out the lineage. so what ive gathered from the old pros is that it is an old school humboldt purple kush x sour diesel x afgani, but then again he who wrote the above messege about lineage names is so true, but if u think about it and have a very distinguishable pallette u can taste all those strains . but who knows really. what ever it is it is rokin humboldt and has fetched the highst price i have ever seen at almost 5g a lb.