Raw Broadsword+7, part 1
Firelink Shrine
Trade for Large Titanite Shard with Pickle Pee, Dark Souls III
Trade a Firebomb with Pickle Pee to obtain Large Titanite Shard x 1.
High Wall of Lothric
Large Titanite Shard from Lothric Wyvern, Dark Souls III
A Lothric Wyvern perches atop a tower. Deal enough damage to the wyvern and it would drop Large Titanite Shard x 1. Farm for a Knight's Crossbow from the Lothric Knight x 4 outside Vordt's arena. Upgrade the Knight's Crossbow to +1, but +2 is recommended. Use Sniper Bolts to shoot at the wyvern.
Cathedral of the Deep
Location of Paladin's Ashes, Dark Souls III
Start from the Crystal Sage bonfire and head to the Cathedral of the Deep bonfire. En route kill Crystal Lizard x 2 for Twinkling Titanite x 2 to upgrade the Irithyll Straight Sword. Grab the Paladin's Ashes near the bonfire. Give the Ashes to the Shrine Handmaid to allow you to purchase Blooming Purple Moss Clump x 4 and Undead Hunter Charm. A Titanite Shard can be found hidden near the bonfire. Grab the Shard for upgrading the Caestus and/or Knight's Crossbow. Proceed to the Cleansing Chapel bonfire.
Cleansing Chapel
Titanite Shard & Estus Shard near Cleansing Chapel, Dark Souls III
Location of Astora Greatsword, Dark Souls III
Titanite Shard x 3 & Twinkling Titanite x 2 near Cleansing Chapel, Dark Souls III
Undead Bone Shard at Cleansing Chapel, Dark Souls III
An Estus Shard is found near the door to the Cleansing Chapel bonfire, guarded by a bunch of kneeling Hollows. You should now have nine uses of your Estus Flask. The Astora Greatsword is found further ahead. This ultra great sword allows you to deal with many strong enemies and is useful for crowd control. You can't properly two-hand the weapon without various rings. Collect an Undead Bone Shard near a birch tree. Your Estus Flask should now be at +2. Collect all Young White Branches by the birch tree to advance the quest line of the giant archer. Kick the nearby ladder and descend the ladder to collect Titanite Shard x 3 and kill Crystal Lizard x 2 for Twinkling Titanite x 2.
Large Titanite Shard from first Giant Slave at Cleansing Chapel, Dark Souls III
Large Titanite Shard from second Giant Slave at Cleansing Chapel, Dark Souls III
Location of Lloyd's Sword Ring, Dark Souls III
SL1 Cheese a Giant Slave at the Cleansing Chapel, Dark Souls III
Inside the cathedral, kill the Giant Slave x 2 for Large Titanite Shard x 2 and Dung Pie x 8. You will use Dung Pie to inflict toxic on an annoying enemy in a late-game area. With the Giant Slave x 2 gone, you have unfettered access to Lloyd's Sword Ring. Grab the ring and equip it to boost your damage output when your HP bar is at least 98% full. Open two shortcuts to the bonfire.
Blessed Gem at Cleansing Chapel, Dark Souls III
A cleric drops the Deep Ring, which allows for an additional Attunement Slot. Initiate Patches' quest line. Completing his quest line would allow you to purchase various useful items such as Black Firebomb. Find Patches disguised as Siegward and exhaust his dialogue. Then cross the bridge to trigger a cutscene. Make your way to the other side of the bridge and exhaust Patches' dialogue. On your way, grab the Blessed Gem. Purchase the Catarina armour set. Give the armour set to Siegward, who is trapped in the well near where you grabbed an Estus Shard, to advance his quest line. You will need the Blessed Gem to infuse the Caestus because the Blessed Caestus is much lighter than the Blessed Red and White Shield+1.