Facts Don't Lie:, page-175

I never said the IPCC reports were not a broad and sweeping overviews of a complex topic.

While the IPCC concludes that the present warm is meaningfully warmer that the Medieval (Roman not presented) they also state:
There are far from sufficient data to make any meaningful estimates of global medieval warmth (Figure 6.11). There are very few long records with high temporal resolution data from the oceans, the tropics or the SH.

I attempted to augment that by the recent Kopp et al. 2016 which uses proxies from sea level and is more global and includes the Roman Period. A case can be made for the 3 to be similar and I conclude they are in the same ballpark until about 1990 when the recent one is likely measurably warmer. I don't see that as very different from the IPCC.

The next logic steps I conclude to be critical but need further consideration including back projection modelling.

Nothing sensational - just the usual step by step.