1)
What is "Kivrosecha"?
1.
Radak: It is Kivros Avosecha.
2)
Did Yoshiyah die "b'Shalom"? They shot 300 arrows at him (Eichah Rabah 1:18), and his body became like a sieve (Sanhedrin 48b)!
1.
'Rashi', Rashi (Melachim II, 22:20, from Mo'ed Katan 28b): He will not see Churban ha'Bayis.
2.
Malbim (Melachim II, 22:20): He will not die b'Shalom, but he will be buried b'Shalom. They took his body from the battlefield to the cemetery, and no one protested.


